diff --git a/.github/workflows/python.yaml b/.github/workflows/python.yaml
new file mode 100644
index 0000000000..7e32685af1
--- /dev/null
+++ b/.github/workflows/python.yaml
@@ -0,0 +1,49 @@
+# Run python library tests whenever code is pushed to master
+
+name: Python Bindings
+
+on:
+  push:
+    branches:
+      - master
+
+  pull_request:
+    branches-ignore:
+      - l10*
+
+jobs:
+
+  python:
+    runs-on: ubuntu-latest
+
+    env:
+      GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      INVENTREE_DB_NAME: './test_db.sqlite'
+      INVENTREE_DB_ENGINE: 'sqlite3'
+      INVENTREE_DEBUG: info
+      INVENTREE_MEDIA_ROOT: ./media
+      INVENTREE_STATIC_ROOT: ./static
+
+    steps:
+      - name: Checkout Code
+        uses: actions/checkout@v2
+      - name: Install InvenTree
+        run: |
+          sudo apt-get update
+          sudo apt-get install python3-dev python3-pip python3-venv
+          pip3 install invoke
+          invoke install
+          invoke migrate
+      - name: Download Python Code
+        run: |
+          git clone --depth 1 https://github.com/inventree/inventree-python ./inventree-python
+      - name: Start Server
+        run: |
+          invoke import-records -f ./inventree-python/test/test_data.json
+          invoke server -a 127.0.0.1:8000 &
+          sleep 60
+      - name: Run Tests
+        run: |
+          cd inventree-python
+          invoke test
+  
\ No newline at end of file
diff --git a/.gitignore b/.gitignore
index 5dd3580ef6..c53a837e24 100644
--- a/.gitignore
+++ b/.gitignore
@@ -35,6 +35,9 @@ local_settings.py
 *.backup
 *.old
 
+# Files used for testing
+dummy_image.*
+
 # Sphinx files
 docs/_build
 
diff --git a/InvenTree/InvenTree/api_tester.py b/InvenTree/InvenTree/api_tester.py
index eb92bd80c1..1cbc62ec0a 100644
--- a/InvenTree/InvenTree/api_tester.py
+++ b/InvenTree/InvenTree/api_tester.py
@@ -18,6 +18,7 @@ class InvenTreeAPITestCase(APITestCase):
     email = 'test@testing.com'
 
     superuser = False
+    is_staff = True
     auto_login = True
 
     # Set list of roles automatically associated with the user
@@ -40,8 +41,12 @@ class InvenTreeAPITestCase(APITestCase):
 
         if self.superuser:
             self.user.is_superuser = True
-            self.user.save()
 
+        if self.is_staff:
+            self.user.is_staff = True
+
+        self.user.save()
+        
         for role in self.roles:
             self.assignRole(role)
 
@@ -73,22 +78,50 @@ class InvenTreeAPITestCase(APITestCase):
                 ruleset.save()
                 break
 
-    def get(self, url, data={}, code=200):
+    def get(self, url, data={}, expected_code=200):
         """
         Issue a GET request
         """
 
         response = self.client.get(url, data, format='json')
 
-        self.assertEqual(response.status_code, code)
+        if expected_code is not None:
+            self.assertEqual(response.status_code, expected_code)
 
         return response
 
-    def post(self, url, data):
+    def post(self, url, data, expected_code=None):
         """
         Issue a POST request
         """
 
         response = self.client.post(url, data=data, format='json')
 
+        if expected_code is not None:
+            self.assertEqual(response.status_code, expected_code)
+
+        return response
+
+    def delete(self, url, expected_code=None):
+        """
+        Issue a DELETE request
+        """
+
+        response = self.client.delete(url)
+
+        if expected_code is not None:
+            self.assertEqual(response.status_code, expected_code)
+
+        return response
+
+    def patch(self, url, data, files=None, expected_code=None):
+        """
+        Issue a PATCH request
+        """
+
+        response = self.client.patch(url, data=data, files=files, format='json')
+
+        if expected_code is not None:
+            self.assertEqual(response.status_code, expected_code)
+
         return response
diff --git a/InvenTree/InvenTree/apps.py b/InvenTree/InvenTree/apps.py
index aeddb714a0..feb46ee667 100644
--- a/InvenTree/InvenTree/apps.py
+++ b/InvenTree/InvenTree/apps.py
@@ -4,7 +4,6 @@ import logging
 
 from django.apps import AppConfig
 from django.core.exceptions import AppRegistryNotReady
-from django.conf import settings
 
 from InvenTree.ready import isInTestMode, canAppAccessDatabase
 import InvenTree.tasks
@@ -66,10 +65,11 @@ class InvenTreeConfig(AppConfig):
             from djmoney.contrib.exchange.models import ExchangeBackend
             from datetime import datetime, timedelta
             from InvenTree.tasks import update_exchange_rates
+            from common.settings import currency_code_default
         except AppRegistryNotReady:
             pass
 
-        base_currency = settings.BASE_CURRENCY
+        base_currency = currency_code_default()
 
         update = False
 
diff --git a/InvenTree/InvenTree/exchange.py b/InvenTree/InvenTree/exchange.py
index 0695e69f48..c75a827cc7 100644
--- a/InvenTree/InvenTree/exchange.py
+++ b/InvenTree/InvenTree/exchange.py
@@ -1,4 +1,4 @@
-from django.conf import settings as inventree_settings
+from common.settings import currency_code_default, currency_codes
 
 from djmoney.contrib.exchange.backends.base import SimpleExchangeBackend
 
@@ -22,8 +22,8 @@ class InvenTreeExchange(SimpleExchangeBackend):
         return {
         }
 
-    def update_rates(self, base_currency=inventree_settings.BASE_CURRENCY):
+    def update_rates(self, base_currency=currency_code_default()):
 
-        symbols = ','.join(inventree_settings.CURRENCIES)
+        symbols = ','.join(currency_codes())
 
         super().update_rates(base=base_currency, symbols=symbols)
diff --git a/InvenTree/InvenTree/fields.py b/InvenTree/InvenTree/fields.py
index c496c1bb22..8d9ab77463 100644
--- a/InvenTree/InvenTree/fields.py
+++ b/InvenTree/InvenTree/fields.py
@@ -2,6 +2,7 @@
 
 # -*- coding: utf-8 -*-
 from __future__ import unicode_literals
+import sys
 
 from .validators import allowable_url_schemes
 
@@ -13,8 +14,11 @@ from django.core import validators
 from django import forms
 
 from decimal import Decimal
+from djmoney.models.fields import MoneyField as ModelMoneyField
+from djmoney.forms.fields import MoneyField
 
 import InvenTree.helpers
+import common.settings
 
 
 class InvenTreeURLFormField(FormURLField):
@@ -34,6 +38,42 @@ class InvenTreeURLField(models.URLField):
         })
 
 
+def money_kwargs():
+    """ returns the database settings for MoneyFields """
+    kwargs = {}
+    kwargs['currency_choices'] = common.settings.currency_code_mappings()
+    kwargs['default_currency'] = common.settings.currency_code_default
+    return kwargs
+
+
+class InvenTreeModelMoneyField(ModelMoneyField):
+    """ custom MoneyField for clean migrations while using dynamic currency settings """
+    def __init__(self, **kwargs):
+        # detect if creating migration
+        if 'makemigrations' in sys.argv:
+            # remove currency information for a clean migration
+            kwargs['default_currency'] = ''
+            kwargs['currency_choices'] = []
+        else:
+            # set defaults
+            kwargs.update(money_kwargs())
+
+        super().__init__(**kwargs)
+
+    def formfield(self, **kwargs):
+        """ override form class to use own function """
+        kwargs['form_class'] = InvenTreeMoneyField
+        return super().formfield(**kwargs)
+
+
+class InvenTreeMoneyField(MoneyField):
+    """ custom MoneyField for clean migrations while using dynamic currency settings """
+    def __init__(self, *args, **kwargs):
+        # override initial values with the real info from database
+        kwargs.update(money_kwargs())
+        super().__init__(*args, **kwargs)
+
+
 class DatePickerFormField(forms.DateField):
     """
     Custom date-picker field
diff --git a/InvenTree/InvenTree/helpers.py b/InvenTree/InvenTree/helpers.py
index 9d00697230..330bd2bb68 100644
--- a/InvenTree/InvenTree/helpers.py
+++ b/InvenTree/InvenTree/helpers.py
@@ -21,6 +21,9 @@ import InvenTree.version
 
 from common.models import InvenTreeSetting
 from .settings import MEDIA_URL, STATIC_URL
+from common.settings import currency_code_default
+
+from djmoney.money import Money
 
 
 def getSetting(key, backup_value=None):
@@ -247,6 +250,22 @@ def decimal2string(d):
     return s.rstrip("0").rstrip(".")
 
 
+def decimal2money(d, currency=None):
+    """
+    Format a Decimal number as Money
+
+    Args:
+        d: A python Decimal object
+        currency: Currency of the input amount, defaults to default currency in settings
+
+    Returns:
+        A Money object from the input(s)
+    """
+    if not currency:
+        currency = currency_code_default()
+    return Money(d, currency)
+
+
 def WrapWithQuotes(text, quote='"'):
     """ Wrap the supplied text with quotes
 
diff --git a/InvenTree/InvenTree/management/commands/rebuild_models.py b/InvenTree/InvenTree/management/commands/rebuild_models.py
new file mode 100644
index 0000000000..2a60da9365
--- /dev/null
+++ b/InvenTree/InvenTree/management/commands/rebuild_models.py
@@ -0,0 +1,60 @@
+"""
+Custom management command to rebuild all MPTT models
+
+- This is crucial after importing any fixtures, etc
+"""
+
+from django.core.management.base import BaseCommand
+
+
+class Command(BaseCommand):
+    """
+    Rebuild all database models which leverage the MPTT structure.
+    """
+
+    def handle(self, *args, **kwargs):
+
+        # Part model
+        try:
+            print("Rebuilding Part objects")
+
+            from part.models import Part
+            Part.objects.rebuild()
+        except:
+            print("Error rebuilding Part objects")
+
+        # Part category
+        try:
+            print("Rebuilding PartCategory objects")
+
+            from part.models import PartCategory
+            PartCategory.objects.rebuild()
+        except:
+            print("Error rebuilding PartCategory objects")
+
+        # StockItem model
+        try:
+            print("Rebuilding StockItem objects")
+
+            from stock.models import StockItem
+            StockItem.objects.rebuild()
+        except:
+            print("Error rebuilding StockItem objects")
+
+        # StockLocation model
+        try:
+            print("Rebuilding StockLocation objects")
+
+            from stock.models import StockLocation
+            StockLocation.objects.rebuild()
+        except:
+            print("Error rebuilding StockLocation objects")
+
+        # Build model
+        try:
+            print("Rebuilding Build objects")
+
+            from build.models import Build
+            Build.objects.rebuild()
+        except:
+            print("Error rebuilding Build objects")
diff --git a/InvenTree/InvenTree/ready.py b/InvenTree/InvenTree/ready.py
index 5a4f1e9576..7d63861f4b 100644
--- a/InvenTree/InvenTree/ready.py
+++ b/InvenTree/InvenTree/ready.py
@@ -12,7 +12,7 @@ def isInTestMode():
     return False
 
 
-def canAppAccessDatabase():
+def canAppAccessDatabase(allow_test=False):
     """
     Returns True if the apps.py file can access database records.
 
@@ -26,19 +26,23 @@ def canAppAccessDatabase():
         'flush',
         'loaddata',
         'dumpdata',
-        'makemirations',
+        'makemigrations',
         'migrate',
         'check',
-        'mediarestore',
         'shell',
         'createsuperuser',
         'wait_for_db',
         'prerender',
+        'rebuild',
         'collectstatic',
         'makemessages',
         'compilemessages',
     ]
 
+    if not allow_test:
+        # Override for testing mode?
+        excluded_commands.append('test')
+
     for cmd in excluded_commands:
         if cmd in sys.argv:
             return False
diff --git a/InvenTree/InvenTree/serializers.py b/InvenTree/InvenTree/serializers.py
index fa7674723c..772daa06ab 100644
--- a/InvenTree/InvenTree/serializers.py
+++ b/InvenTree/InvenTree/serializers.py
@@ -2,16 +2,19 @@
 Serializers used in various InvenTree apps
 """
 
-
 # -*- coding: utf-8 -*-
 from __future__ import unicode_literals
 
-from rest_framework import serializers
-
 import os
 
 from django.conf import settings
 from django.contrib.auth.models import User
+from django.core.exceptions import ValidationError as DjangoValidationError
+
+from rest_framework import serializers
+from rest_framework.utils import model_meta
+from rest_framework.fields import empty
+from rest_framework.exceptions import ValidationError
 
 
 class UserSerializer(serializers.ModelSerializer):
@@ -39,18 +42,103 @@ class InvenTreeModelSerializer(serializers.ModelSerializer):
     but also ensures that the underlying model class data are checked on validation.
     """
 
-    def validate(self, data):
-        """ Perform serializer validation.
+    def __init__(self, instance=None, data=empty, **kwargs):
+
+        # self.instance = instance
+
+        # If instance is None, we are creating a new instance
+        if instance is None and data is not empty:
+            
+            # Required to side-step immutability of a QueryDict
+            data = data.copy()
+
+            # Add missing fields which have default values
+            ModelClass = self.Meta.model
+
+            fields = model_meta.get_field_info(ModelClass)
+
+            for field_name, field in fields.fields.items():
+
+                """
+                Update the field IF (and ONLY IF):
+                - The field has a specified default value
+                - The field does not already have a value set
+                """
+                if field.has_default() and field_name not in data:
+
+                    value = field.default
+
+                    # Account for callable functions
+                    if callable(value):
+                        try:
+                            value = value()
+                        except:
+                            continue
+
+                    data[field_name] = value
+
+        super().__init__(instance, data, **kwargs)
+
+    def get_initial(self):
+        """
+        Construct initial data for the serializer.
+        Use the 'default' values specified by the django model definition
+        """
+
+        initials = super().get_initial().copy()
+
+        # Are we creating a new instance?
+        if self.instance is None:
+            ModelClass = self.Meta.model
+
+            fields = model_meta.get_field_info(ModelClass)
+
+            for field_name, field in fields.fields.items():
+
+                if field.has_default() and field_name not in initials:
+
+                    value = field.default
+
+                    # Account for callable functions
+                    if callable(value):
+                        try:
+                            value = value()
+                        except:
+                            continue
+
+                    initials[field_name] = value
+
+        return initials
+
+    def run_validation(self, data=empty):
+        """
+        Perform serializer validation.
         In addition to running validators on the serializer fields,
         this class ensures that the underlying model is also validated.
         """
 
-        # Run any native validation checks first (may throw an ValidationError)
-        data = super(serializers.ModelSerializer, self).validate(data)
+        # Run any native validation checks first (may raise a ValidationError)
+        data = super().run_validation(data)
 
         # Now ensure the underlying model is correct
-        instance = self.Meta.model(**data)
-        instance.clean()
+
+        if not hasattr(self, 'instance') or self.instance is None:
+            # No instance exists (we are creating a new one)
+            instance = self.Meta.model(**data)
+        else:
+            # Instance already exists (we are updating!)
+            instance = self.instance
+
+            # Update instance fields
+            for attr, value in data.items():
+                setattr(instance, attr, value)
+
+        # Run a 'full_clean' on the model.
+        # Note that by default, DRF does *not* perform full model validation!
+        try:
+            instance.full_clean()
+        except (ValidationError, DjangoValidationError) as exc:
+            raise ValidationError(detail=serializers.as_serializer_error(exc))
 
         return data
 
@@ -82,3 +170,17 @@ class InvenTreeAttachmentSerializerField(serializers.FileField):
             return None
 
         return os.path.join(str(settings.MEDIA_URL), str(value))
+
+
+class InvenTreeImageSerializerField(serializers.ImageField):
+    """
+    Custom image serializer.
+    On upload, validate that the file is a valid image file
+    """
+
+    def to_representation(self, value):
+
+        if not value:
+            return None
+
+        return os.path.join(str(settings.MEDIA_URL), str(value))
diff --git a/InvenTree/InvenTree/settings.py b/InvenTree/InvenTree/settings.py
index 208472ff2e..6c1d52487d 100644
--- a/InvenTree/InvenTree/settings.py
+++ b/InvenTree/InvenTree/settings.py
@@ -23,6 +23,7 @@ import moneyed
 
 import yaml
 from django.utils.translation import gettext_lazy as _
+from django.contrib.messages import constants as messages
 
 
 def _is_true(x):
@@ -97,7 +98,7 @@ DOCKER = _is_true(get_setting(
 # Configure logging settings
 log_level = get_setting(
     'INVENTREE_LOG_LEVEL',
-    CONFIG.get('log_level', 'DEBUG')
+    CONFIG.get('log_level', 'WARNING')
 )
 
 logging.basicConfig(
@@ -521,10 +522,6 @@ for currency in CURRENCIES:
         print(f"Currency code '{currency}' is not supported")
         sys.exit(1)
 
-BASE_CURRENCY = get_setting(
-    'INVENTREE_BASE_CURRENCY',
-    CONFIG.get('base_currency', 'USD')
-)
 
 # Custom currency exchange backend
 EXCHANGE_BACKEND = 'InvenTree.exchange.InvenTreeExchange'
@@ -611,3 +608,9 @@ IMPORT_EXPORT_USE_TRANSACTIONS = True
 INTERNAL_IPS = [
     '127.0.0.1',
 ]
+
+MESSAGE_TAGS = {
+    messages.SUCCESS: 'alert alert-block alert-success',
+    messages.ERROR: 'alert alert-block alert-danger',
+    messages.INFO: 'alert alert-block alert-info',
+}
diff --git a/InvenTree/InvenTree/static/css/inventree.css b/InvenTree/InvenTree/static/css/inventree.css
index eed6c6ad21..e4d12576fa 100644
--- a/InvenTree/InvenTree/static/css/inventree.css
+++ b/InvenTree/InvenTree/static/css/inventree.css
@@ -718,7 +718,7 @@
   position:relative;
   height: auto !important;
   max-height: calc(100vh - 200px) !important;
-  overflow-y: scroll;
+  overflow-y: auto;
   padding: 10px;
 }
 
diff --git a/InvenTree/InvenTree/static/script/inventree/api.js b/InvenTree/InvenTree/static/script/inventree/api.js
index 52aba80ef5..b43bcc8419 100644
--- a/InvenTree/InvenTree/static/script/inventree/api.js
+++ b/InvenTree/InvenTree/static/script/inventree/api.js
@@ -58,7 +58,7 @@ function inventreeFormDataUpload(url, data, options={}) {
             xhr.setRequestHeader('X-CSRFToken', csrftoken);
         },
         url: url,
-        method: 'POST',
+        method: options.method || 'POST',
         data: data,
         processData: false,
         contentType: false,
diff --git a/InvenTree/InvenTree/static/script/inventree/inventree.js b/InvenTree/InvenTree/static/script/inventree/inventree.js
index 1a6fdec47a..79e02d7da5 100644
--- a/InvenTree/InvenTree/static/script/inventree/inventree.js
+++ b/InvenTree/InvenTree/static/script/inventree/inventree.js
@@ -219,6 +219,7 @@ function enableDragAndDrop(element, url, options) {
             data - Other form data to upload
             success - Callback function in case of success
             error - Callback function in case of error
+            method - HTTP method
     */
 
     data = options.data || {};
@@ -254,7 +255,8 @@ function enableDragAndDrop(element, url, options) {
                         if (options.error) {
                             options.error(xhr, status, error);
                         }
-                    }
+                    },
+                    method: options.method || 'POST',
                 }
             );
         } else {
diff --git a/InvenTree/InvenTree/status.py b/InvenTree/InvenTree/status.py
index 970e88831d..512c68e93b 100644
--- a/InvenTree/InvenTree/status.py
+++ b/InvenTree/InvenTree/status.py
@@ -4,9 +4,10 @@ Provides system status functionality checks.
 # -*- coding: utf-8 -*-
 
 from django.utils.translation import ugettext_lazy as _
+from django.utils import timezone
 
 import logging
-from datetime import datetime, timedelta
+from datetime import timedelta
 
 from django_q.models import Success
 from django_q.monitor import Stat
@@ -34,7 +35,7 @@ def is_worker_running(**kwargs):
     Check to see if we have a result within the last 20 minutes
     """
 
-    now = datetime.now()
+    now = timezone.now()
     past = now - timedelta(minutes=20)
 
     results = Success.objects.filter(
@@ -60,21 +61,21 @@ def is_email_configured():
 
         # Display warning unless in test mode
         if not settings.TESTING:
-            logger.warning("EMAIL_HOST is not configured")
+            logger.debug("EMAIL_HOST is not configured")
 
     if not settings.EMAIL_HOST_USER:
         configured = False
 
         # Display warning unless in test mode
         if not settings.TESTING:
-            logger.warning("EMAIL_HOST_USER is not configured")
+            logger.debug("EMAIL_HOST_USER is not configured")
 
     if not settings.EMAIL_HOST_PASSWORD:
         configured = False
 
         # Display warning unless in test mode
         if not settings.TESTING:
-            logger.warning("EMAIL_HOST_PASSWORD is not configured")
+            logger.debug("EMAIL_HOST_PASSWORD is not configured")
 
     return configured
 
diff --git a/InvenTree/InvenTree/tasks.py b/InvenTree/InvenTree/tasks.py
index d45df99152..cab87ee64b 100644
--- a/InvenTree/InvenTree/tasks.py
+++ b/InvenTree/InvenTree/tasks.py
@@ -28,7 +28,7 @@ def schedule_task(taskname, **kwargs):
     try:
         from django_q.models import Schedule
     except (AppRegistryNotReady):
-        logger.warning("Could not start background tasks - App registry not ready")
+        logger.info("Could not start background tasks - App registry not ready")
         return
 
     try:
@@ -80,7 +80,7 @@ def heartbeat():
 
     try:
         from django_q.models import Success
-        logger.warning("Could not perform heartbeat task - App registry not ready")
+        logger.info("Could not perform heartbeat task - App registry not ready")
     except AppRegistryNotReady:
         return
 
@@ -105,7 +105,7 @@ def delete_successful_tasks():
     try:
         from django_q.models import Success
     except AppRegistryNotReady:
-        logger.warning("Could not perform 'delete_successful_tasks' - App registry not ready")
+        logger.info("Could not perform 'delete_successful_tasks' - App registry not ready")
         return
 
     threshold = datetime.now() - timedelta(days=30)
@@ -126,6 +126,7 @@ def check_for_updates():
         import common.models
     except AppRegistryNotReady:
         # Apps not yet loaded!
+        logger.info("Could not perform 'check_for_updates' - App registry not ready")
         return
 
     response = requests.get('https://api.github.com/repos/inventree/inventree/releases/latest')
@@ -169,9 +170,10 @@ def update_exchange_rates():
     try:
         from InvenTree.exchange import InvenTreeExchange
         from djmoney.contrib.exchange.models import ExchangeBackend, Rate
-        from django.conf import settings
+        from common.settings import currency_code_default, currency_codes
     except AppRegistryNotReady:
         # Apps not yet loaded!
+        logger.info("Could not perform 'update_exchange_rates' - App registry not ready")
         return
     except:
         # Other error?
@@ -190,14 +192,14 @@ def update_exchange_rates():
     backend = InvenTreeExchange()
     print(f"Updating exchange rates from {backend.url}")
 
-    base = settings.BASE_CURRENCY
+    base = currency_code_default()
 
     print(f"Using base currency '{base}'")
 
     backend.update_rates(base_currency=base)
 
     # Remove any exchange rates which are not in the provided currencies
-    Rate.objects.filter(backend="InvenTreeExchange").exclude(currency__in=settings.CURRENCIES).delete()
+    Rate.objects.filter(backend="InvenTreeExchange").exclude(currency__in=currency_codes()).delete()
 
 
 def send_email(subject, body, recipients, from_email=None):
diff --git a/InvenTree/InvenTree/test_api.py b/InvenTree/InvenTree/test_api.py
index 8435d756fb..18f9319624 100644
--- a/InvenTree/InvenTree/test_api.py
+++ b/InvenTree/InvenTree/test_api.py
@@ -2,6 +2,11 @@
 
 from rest_framework import status
 
+from django.test import TestCase
+
+from django.contrib.auth import get_user_model
+from django.contrib.auth.models import Group
+
 from django.urls import reverse
 
 from InvenTree.api_tester import InvenTreeAPITestCase
@@ -11,6 +16,87 @@ from users.models import RuleSet
 from base64 import b64encode
 
 
+class HTMLAPITests(TestCase):
+    """
+    Test that we can access the REST API endpoints via the HTML interface.
+    
+    History: Discovered on 2021-06-28 a bug in InvenTreeModelSerializer,
+    which raised an AssertionError when using the HTML API interface,
+    while the regular JSON interface continued to work as expected.
+    """
+
+    def setUp(self):
+        super().setUp()
+
+        # Create a user
+        user = get_user_model()
+
+        self.user = user.objects.create_user(
+            username='username',
+            email='user@email.com',
+            password='password'
+        )
+
+        # Put the user into a group with the correct permissions
+        group = Group.objects.create(name='mygroup')
+        self.user.groups.add(group)
+
+        # Give the group *all* the permissions!
+        for rule in group.rule_sets.all():
+            rule.can_view = True
+            rule.can_change = True
+            rule.can_add = True
+            rule.can_delete = True
+
+            rule.save()
+
+        self.client.login(username='username', password='password')
+
+    def test_part_api(self):
+        url = reverse('api-part-list')
+
+        # Check JSON response
+        response = self.client.get(url, HTTP_ACCEPT='application/json')
+        self.assertEqual(response.status_code, 200)
+
+        # Check HTTP response
+        response = self.client.get(url, HTTP_ACCEPT='text/html')
+        self.assertEqual(response.status_code, 200)
+
+    def test_build_api(self):
+        url = reverse('api-build-list')
+
+        # Check JSON response
+        response = self.client.get(url, HTTP_ACCEPT='application/json')
+        self.assertEqual(response.status_code, 200)
+
+        # Check HTTP response
+        response = self.client.get(url, HTTP_ACCEPT='text/html')
+        self.assertEqual(response.status_code, 200)
+
+    def test_stock_api(self):
+        url = reverse('api-stock-list')
+
+        # Check JSON response
+        response = self.client.get(url, HTTP_ACCEPT='application/json')
+        self.assertEqual(response.status_code, 200)
+
+        # Check HTTP response
+        response = self.client.get(url, HTTP_ACCEPT='text/html')
+        self.assertEqual(response.status_code, 200)
+
+    def test_company_list(self):
+        url = reverse('api-company-list')
+
+        # Check JSON response
+        response = self.client.get(url, HTTP_ACCEPT='application/json')
+        self.assertEqual(response.status_code, 200)
+
+        # Check HTTP response
+        response = self.client.get(url, HTTP_ACCEPT='text/html')
+        self.assertEqual(response.status_code, 200)
+
+
 class APITests(InvenTreeAPITestCase):
     """ Tests for the InvenTree API """
 
@@ -77,7 +163,7 @@ class APITests(InvenTreeAPITestCase):
         self.assertIn('version', data)
         self.assertIn('instance', data)
 
-        self.assertEquals('InvenTree', data['server'])
+        self.assertEqual('InvenTree', data['server'])
 
     def test_role_view(self):
         """
diff --git a/InvenTree/InvenTree/tests.py b/InvenTree/InvenTree/tests.py
index b7e5b98c1b..150662cb8e 100644
--- a/InvenTree/InvenTree/tests.py
+++ b/InvenTree/InvenTree/tests.py
@@ -5,8 +5,6 @@ from django.test import TestCase
 import django.core.exceptions as django_exceptions
 from django.core.exceptions import ValidationError
 
-from django.conf import settings
-
 from djmoney.money import Money
 from djmoney.contrib.exchange.models import Rate, convert_money
 from djmoney.contrib.exchange.exceptions import MissingRate
@@ -22,6 +20,7 @@ from decimal import Decimal
 import InvenTree.tasks
 
 from stock.models import StockLocation
+from common.settings import currency_codes
 
 
 class ValidatorTest(TestCase):
@@ -337,13 +336,11 @@ class CurrencyTests(TestCase):
         with self.assertRaises(MissingRate):
             convert_money(Money(100, 'AUD'), 'USD')
 
-        currencies = settings.CURRENCIES
-
         InvenTree.tasks.update_exchange_rates()
 
         rates = Rate.objects.all()
 
-        self.assertEqual(rates.count(), len(currencies))
+        self.assertEqual(rates.count(), len(currency_codes()))
 
         # Now that we have some exchange rate information, we can perform conversions
 
diff --git a/InvenTree/InvenTree/version.py b/InvenTree/InvenTree/version.py
index 5161bee6a1..6afa5ebadd 100644
--- a/InvenTree/InvenTree/version.py
+++ b/InvenTree/InvenTree/version.py
@@ -8,21 +8,27 @@ import re
 
 import common.models
 
-INVENTREE_SW_VERSION = "0.2.4 pre"
+INVENTREE_SW_VERSION = "0.2.5 pre"
+
+INVENTREE_API_VERSION = 6
 
 """
 Increment thi API version number whenever there is a significant change to the API that any clients need to know about
 
-v3 -> 2021-05-22:
-    - The updated StockItem "history tracking" now uses a different interface
+v6 -> 2021-06-23
+    - Part and Company images can now be directly uploaded via the REST API
+
+v5 -> 2021-06-21
+    - Adds API interface for manufacturer part parameters
 
 v4 -> 2021-06-01
     - BOM items can now accept "variant stock" to be assigned against them
     - Many slight API tweaks were needed to get this to work properly!
 
-"""
+v3 -> 2021-05-22:
+    - The updated StockItem "history tracking" now uses a different interface
 
-INVENTREE_API_VERSION = 4
+"""
 
 
 def inventreeInstanceName():
diff --git a/InvenTree/InvenTree/views.py b/InvenTree/InvenTree/views.py
index 06aec54c18..4b559642ca 100644
--- a/InvenTree/InvenTree/views.py
+++ b/InvenTree/InvenTree/views.py
@@ -12,7 +12,6 @@ from django.utils.translation import gettext_lazy as _
 from django.template.loader import render_to_string
 from django.http import HttpResponse, JsonResponse, HttpResponseRedirect
 from django.urls import reverse_lazy
-from django.conf import settings
 
 from django.contrib.auth.mixins import PermissionRequiredMixin
 
@@ -21,6 +20,7 @@ from django.views.generic import ListView, DetailView, CreateView, FormView, Del
 from django.views.generic.base import RedirectView, TemplateView
 
 from djmoney.contrib.exchange.models import ExchangeBackend, Rate
+from common.settings import currency_code_default, currency_codes
 
 from part.models import Part, PartCategory
 from stock.models import StockLocation, StockItem
@@ -337,7 +337,7 @@ class AjaxMixin(InvenTreeRoleMixin):
         # Do nothing by default
         pass
 
-    def renderJsonResponse(self, request, form=None, data={}, context=None):
+    def renderJsonResponse(self, request, form=None, data=None, context=None):
         """ Render a JSON response based on specific class context.
 
         Args:
@@ -349,6 +349,9 @@ class AjaxMixin(InvenTreeRoleMixin):
         Returns:
             JSON response object
         """
+        # a empty dict as default can be dangerous - set it here if empty
+        if not data:
+            data = {}
 
         if not request.is_ajax():
             return HttpResponseRedirect('/')
@@ -817,8 +820,8 @@ class CurrencySettingsView(TemplateView):
         ctx = super().get_context_data(**kwargs).copy()
 
         ctx['settings'] = InvenTreeSetting.objects.all().order_by('key')
-        ctx["base_currency"] = settings.BASE_CURRENCY
-        ctx["currencies"] = settings.CURRENCIES
+        ctx["base_currency"] = currency_code_default()
+        ctx["currencies"] = currency_codes
 
         ctx["rates"] = Rate.objects.filter(backend="InvenTreeExchange")
 
diff --git a/InvenTree/build/api.py b/InvenTree/build/api.py
index 160642281a..1cb973fe05 100644
--- a/InvenTree/build/api.py
+++ b/InvenTree/build/api.py
@@ -165,6 +165,19 @@ class BuildItemList(generics.ListCreateAPIView):
 
     serializer_class = BuildItemSerializer
 
+    def get_serializer(self, *args, **kwargs):
+
+        try:
+            params = self.request.query_params
+
+            kwargs['part_detail'] = str2bool(params.get('part_detail', False))
+            kwargs['build_detail'] = str2bool(params.get('build_detail', False))
+            kwargs['location_detail'] = str2bool(params.get('location_detail', False))
+        except AttributeError:
+            pass
+        
+        return self.serializer_class(*args, **kwargs)
+
     def get_queryset(self):
         """ Override the queryset method,
         to allow filtering by stock_item.part
diff --git a/InvenTree/build/migrations/0029_auto_20210601_1525.py b/InvenTree/build/migrations/0029_auto_20210601_1525.py
index c5ea04b5c9..e8b2d58947 100644
--- a/InvenTree/build/migrations/0029_auto_20210601_1525.py
+++ b/InvenTree/build/migrations/0029_auto_20210601_1525.py
@@ -40,7 +40,8 @@ def assign_bom_items(apps, schema_editor):
         except BomItem.DoesNotExist:
             pass
 
-    print(f"Assigned BomItem for {count_valid}/{count_total} entries")
+    if count_total > 0:
+        print(f"Assigned BomItem for {count_valid}/{count_total} entries")
 
 
 def unassign_bom_items(apps, schema_editor):
diff --git a/InvenTree/build/serializers.py b/InvenTree/build/serializers.py
index 629422f6e5..d8573cfa70 100644
--- a/InvenTree/build/serializers.py
+++ b/InvenTree/build/serializers.py
@@ -13,7 +13,8 @@ from rest_framework import serializers
 from InvenTree.serializers import InvenTreeModelSerializer
 
 from stock.serializers import StockItemSerializerBrief
-from part.serializers import PartBriefSerializer
+from stock.serializers import LocationSerializer
+from part.serializers import PartSerializer, PartBriefSerializer
 
 from .models import Build, BuildItem
 
@@ -99,22 +100,45 @@ class BuildItemSerializer(InvenTreeModelSerializer):
 
     bom_part = serializers.IntegerField(source='bom_item.sub_part.pk', read_only=True)
     part = serializers.IntegerField(source='stock_item.part.pk', read_only=True)
-    part_name = serializers.CharField(source='stock_item.part.full_name', read_only=True)
-    part_thumb = serializers.CharField(source='getStockItemThumbnail', read_only=True)
+    location = serializers.IntegerField(source='stock_item.location.pk', read_only=True)
+
+    # Extra (optional) detail fields
+    part_detail = PartSerializer(source='stock_item.part', many=False, read_only=True)
+    build_detail = BuildSerializer(source='build', many=False, read_only=True)
     stock_item_detail = StockItemSerializerBrief(source='stock_item', read_only=True)
+    location_detail = LocationSerializer(source='stock_item.location', read_only=True)
 
     quantity = serializers.FloatField()
 
+    def __init__(self, *args, **kwargs):
+
+        build_detail = kwargs.pop('build_detail', False)
+        part_detail = kwargs.pop('part_detail', False)
+        location_detail = kwargs.pop('location_detail', False)
+
+        super().__init__(*args, **kwargs)
+
+        if not build_detail:
+            self.fields.pop('build_detail')
+
+        if not part_detail:
+            self.fields.pop('part_detail')
+
+        if not location_detail:
+            self.fields.pop('location_detail')
+
     class Meta:
         model = BuildItem
         fields = [
             'pk',
             'bom_part',
             'build',
+            'build_detail',
             'install_into',
+            'location',
+            'location_detail',
             'part',
-            'part_name',
-            'part_thumb',
+            'part_detail',
             'stock_item',
             'stock_item_detail',
             'quantity'
diff --git a/InvenTree/common/files.py b/InvenTree/common/files.py
index 377120f44d..f805ceaace 100644
--- a/InvenTree/common/files.py
+++ b/InvenTree/common/files.py
@@ -22,17 +22,19 @@ class FileManager:
 
     # Fields which are used for item matching (only one of them is needed)
     ITEM_MATCH_HEADERS = []
-    
+
     # Fields which would be helpful but are not required
     OPTIONAL_HEADERS = []
 
+    OPTIONAL_MATCH_HEADERS = []
+
     EDITABLE_HEADERS = []
 
     HEADERS = []
 
     def __init__(self, file, name=None):
         """ Initialize the FileManager class with a user-uploaded file object """
-        
+
         # Set name
         if name:
             self.name = name
@@ -71,47 +73,34 @@ class FileManager:
             raise ValidationError(_('Error reading file (incorrect dimension)'))
         except KeyError:
             raise ValidationError(_('Error reading file (data could be corrupted)'))
-        
+
         return cleaned_data
 
     def process(self, file):
         """ Process file """
 
         self.data = self.__class__.validate(file)
-            
+
     def update_headers(self):
         """ Update headers """
 
-        self.HEADERS = self.REQUIRED_HEADERS + self.ITEM_MATCH_HEADERS + self.OPTIONAL_HEADERS
-            
+        self.HEADERS = self.REQUIRED_HEADERS + self.ITEM_MATCH_HEADERS + self.OPTIONAL_MATCH_HEADERS + self.OPTIONAL_HEADERS
+
     def setup(self):
-        """ Setup headers depending on the file name """
+        """
+        Setup headers
+        should be overriden in usage to set the Different Headers
+        """
 
         if not self.name:
             return
 
-        if self.name == 'order':
-            self.REQUIRED_HEADERS = [
-                'Quantity',
-            ]
-
-            self.ITEM_MATCH_HEADERS = [
-                'Manufacturer_MPN',
-                'Supplier_SKU',
-            ]
-
-            self.OPTIONAL_HEADERS = [
-                'Purchase_Price',
-                'Reference',
-                'Notes',
-            ]
-
-            # Update headers
-            self.update_headers()
+        # Update headers
+        self.update_headers()
 
     def guess_header(self, header, threshold=80):
         """ Try to match a header (from the file) to a list of known headers
-        
+
         Args:
             header - Header name to look for
             threshold - Match threshold for fuzzy search
@@ -145,7 +134,7 @@ class FileManager:
             return matches[0]['header']
 
         return None
-    
+
     def columns(self):
         """ Return a list of headers for the thingy """
         headers = []
diff --git a/InvenTree/common/forms.py b/InvenTree/common/forms.py
index f161c8cc01..4a2a1601aa 100644
--- a/InvenTree/common/forms.py
+++ b/InvenTree/common/forms.py
@@ -8,12 +8,7 @@ from __future__ import unicode_literals
 from django import forms
 from django.utils.translation import gettext as _
 
-from djmoney.forms.fields import MoneyField
-
 from InvenTree.forms import HelperForm
-from InvenTree.helpers import clean_decimal
-
-from common.settings import currency_code_default
 
 from .files import FileManager
 from .models import InvenTreeSetting
@@ -32,7 +27,7 @@ class SettingEditForm(HelperForm):
         ]
 
 
-class UploadFile(forms.Form):
+class UploadFileForm(forms.Form):
     """ Step 1 of FileManagementFormView """
 
     file = forms.FileField(
@@ -70,9 +65,9 @@ class UploadFile(forms.Form):
         return file
 
 
-class MatchField(forms.Form):
+class MatchFieldForm(forms.Form):
     """ Step 2 of FileManagementFormView """
-    
+
     def __init__(self, *args, **kwargs):
 
         # Get FileManager
@@ -88,7 +83,7 @@ class MatchField(forms.Form):
         columns = file_manager.columns()
         # Get headers choices
         headers_choices = [(header, header) for header in file_manager.HEADERS]
-        
+
         # Create column fields
         for col in columns:
             field_name = col['name']
@@ -103,9 +98,9 @@ class MatchField(forms.Form):
                 self.fields[field_name].initial = col['guess']
 
 
-class MatchItem(forms.Form):
+class MatchItemForm(forms.Form):
     """ Step 3 of FileManagementFormView """
-    
+
     def __init__(self, *args, **kwargs):
 
         # Get FileManager
@@ -131,24 +126,41 @@ class MatchItem(forms.Form):
                 for col in row['data']:
                     # Get column matching
                     col_guess = col['column'].get('guess', None)
+                    # Set field name
+                    field_name = col_guess.lower() + '-' + str(row['index'])
+
+                    # check if field def was overriden
+                    overriden_field = self.get_special_field(col_guess, row, file_manager)
+                    if overriden_field:
+                        self.fields[field_name] = overriden_field
 
                     # Create input for required headers
-                    if col_guess in file_manager.REQUIRED_HEADERS:
-                        # Set field name
-                        field_name = col_guess.lower() + '-' + str(row['index'])
+                    elif col_guess in file_manager.REQUIRED_HEADERS:
+                        # Get value
+                        value = row.get(col_guess.lower(), '')
                         # Set field input box
-                        if 'quantity' in col_guess.lower():
-                            self.fields[field_name] = forms.CharField(
-                                required=False,
-                                widget=forms.NumberInput(attrs={
-                                    'name': 'quantity' + str(row['index']),
-                                    'class': 'numberinput',  # form-control',
-                                    'type': 'number',
-                                    'min': '0',
-                                    'step': 'any',
-                                    'value': clean_decimal(row.get('quantity', '')),
-                                })
-                            )
+                        self.fields[field_name] = forms.CharField(
+                            required=True,
+                            initial=value,
+                        )
+
+                    # Create item selection box
+                    elif col_guess in file_manager.OPTIONAL_MATCH_HEADERS:
+                        # Get item options
+                        item_options = [(option.id, option) for option in row['match_options_' + col_guess]]
+                        # Get item match
+                        item_match = row['match_' + col_guess]
+                        # Set field select box
+                        self.fields[field_name] = forms.ChoiceField(
+                            choices=[('', '-' * 10)] + item_options,
+                            required=False,
+                            widget=forms.Select(attrs={
+                                'class': 'select bomselect',
+                            })
+                        )
+                        # Update select box when match was found
+                        if item_match:
+                            self.fields[field_name].initial = item_match.id
 
                     # Create item selection box
                     elif col_guess in file_manager.ITEM_MATCH_HEADERS:
@@ -176,22 +188,15 @@ class MatchItem(forms.Form):
 
                     # Optional entries
                     elif col_guess in file_manager.OPTIONAL_HEADERS:
-                        # Set field name
-                        field_name = col_guess.lower() + '-' + str(row['index'])
                         # Get value
                         value = row.get(col_guess.lower(), '')
                         # Set field input box
-                        if 'price' in col_guess.lower():
-                            self.fields[field_name] = MoneyField(
-                                label=_(col_guess),
-                                default_currency=currency_code_default(),
-                                decimal_places=5,
-                                max_digits=19,
-                                required=False,
-                                default_amount=clean_decimal(value),
-                            )
-                        else:
-                            self.fields[field_name] = forms.CharField(
-                                required=False,
-                                initial=value,
-                            )
+                        self.fields[field_name] = forms.CharField(
+                            required=False,
+                            initial=value,
+                        )
+
+    def get_special_field(self, col_guess, row, file_manager):
+        """ Function to be overriden in inherited forms to add specific form settings """
+
+        return None
diff --git a/InvenTree/common/migrations/0010_migrate_currency_setting.py b/InvenTree/common/migrations/0010_migrate_currency_setting.py
new file mode 100644
index 0000000000..23076ff200
--- /dev/null
+++ b/InvenTree/common/migrations/0010_migrate_currency_setting.py
@@ -0,0 +1,23 @@
+# Generated by Django 3.2.4 on 2021-07-01 15:39
+
+from django.db import migrations
+from common.models import InvenTreeSetting
+from InvenTree.settings import get_setting, CONFIG
+
+def set_default_currency(apps, schema_editor):
+    """ migrate the currency setting from config.yml to db """
+    # get value from settings-file
+    base_currency = get_setting('INVENTREE_BASE_CURRENCY', CONFIG.get('base_currency', 'USD'))
+    # write to database
+    InvenTreeSetting.set_setting('INVENTREE_DEFAULT_CURRENCY', base_currency, None, create=True)
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('common', '0009_delete_currency'),
+    ]
+
+    operations = [
+        migrations.RunPython(set_default_currency),
+    ]
diff --git a/InvenTree/common/models.py b/InvenTree/common/models.py
index ec76475901..c8a5839f4e 100644
--- a/InvenTree/common/models.py
+++ b/InvenTree/common/models.py
@@ -14,11 +14,11 @@ from django.db import models, transaction
 from django.db.utils import IntegrityError, OperationalError
 from django.conf import settings
 
-from djmoney.models.fields import MoneyField
+from djmoney.settings import CURRENCY_CHOICES
 from djmoney.contrib.exchange.models import convert_money
 from djmoney.contrib.exchange.exceptions import MissingRate
 
-from common.settings import currency_code_default
+import common.settings
 
 from django.utils.translation import ugettext_lazy as _
 from django.core.validators import MinValueValidator, URLValidator
@@ -81,6 +81,13 @@ class InvenTreeSetting(models.Model):
             'default': '',
         },
 
+        'INVENTREE_DEFAULT_CURRENCY': {
+            'name': _('Default Currency'),
+            'description': _('Default currency'),
+            'default': 'USD',
+            'choices': CURRENCY_CHOICES,
+        },
+
         'INVENTREE_DOWNLOAD_FROM_URL': {
             'name': _('Download from URL'),
             'description': _('Allow download of remote images and files from external URL'),
@@ -205,6 +212,41 @@ class InvenTreeSetting(models.Model):
             'validator': bool,
         },
 
+        'PART_SHOW_IMPORT': {
+            'name': _('Show Import in Views'),
+            'description': _('Display the import wizard in some part views'),
+            'default': False,
+            'validator': bool,
+        },
+
+        'PART_SHOW_PRICE_IN_FORMS': {
+            'name': _('Show Price in Forms'),
+            'description': _('Display part price in some forms'),
+            'default': True,
+            'validator': bool,
+        },
+
+        'PART_SHOW_RELATED': {
+            'name': _('Show related parts'),
+            'description': _('Display related parts for a part'),
+            'default': True,
+            'validator': bool,
+        },
+
+        'PART_INTERNAL_PRICE': {
+            'name': _('Internal Prices'),
+            'description': _('Enable internal prices for parts'),
+            'default': False,
+            'validator': bool
+        },
+
+        'PART_BOM_USE_INTERNAL_PRICE': {
+            'name': _('Internal Price as BOM-Price'),
+            'description': _('Use the internal price (if set) in BOM-price calculations'),
+            'default': False,
+            'validator': bool
+        },
+
         'REPORT_DEBUG_MODE': {
             'name': _('Debug Mode'),
             'description': _('Generate reports in debug mode (HTML output)'),
@@ -700,10 +742,9 @@ class PriceBreak(models.Model):
         help_text=_('Price break quantity'),
     )
 
-    price = MoneyField(
+    price = InvenTree.fields.InvenTreeModelMoneyField(
         max_digits=19,
         decimal_places=4,
-        default_currency=currency_code_default(),
         null=True,
         verbose_name=_('Price'),
         help_text=_('Unit price at specified quantity'),
@@ -726,7 +767,7 @@ class PriceBreak(models.Model):
         return converted.amount
 
 
-def get_price(instance, quantity, moq=True, multiples=True, currency=None):
+def get_price(instance, quantity, moq=True, multiples=True, currency=None, break_name: str = 'price_breaks'):
     """ Calculate the price based on quantity price breaks.
 
     - Don't forget to add in flat-fee cost (base_cost field)
@@ -734,7 +775,10 @@ def get_price(instance, quantity, moq=True, multiples=True, currency=None):
     - If order multiples are to be observed, then we need to calculate based on that, too
     """
 
-    price_breaks = instance.price_breaks.all()
+    if hasattr(instance, break_name):
+        price_breaks = getattr(instance, break_name).all()
+    else:
+        price_breaks = []
 
     # No price break information available?
     if len(price_breaks) == 0:
@@ -753,10 +797,10 @@ def get_price(instance, quantity, moq=True, multiples=True, currency=None):
 
     if currency is None:
         # Default currency selection
-        currency = currency_code_default()
+        currency = common.settings.currency_code_default()
 
     pb_min = None
-    for pb in instance.price_breaks.all():
+    for pb in price_breaks:
         # Store smallest price break
         if not pb_min:
             pb_min = pb
diff --git a/InvenTree/common/settings.py b/InvenTree/common/settings.py
index 60265f4cb9..e255ed0904 100644
--- a/InvenTree/common/settings.py
+++ b/InvenTree/common/settings.py
@@ -6,9 +6,9 @@ User-configurable settings for the common app
 from __future__ import unicode_literals
 
 from moneyed import CURRENCIES
+from django.conf import settings
 
 import common.models
-from django.conf import settings
 
 
 def currency_code_default():
@@ -16,7 +16,7 @@ def currency_code_default():
     Returns the default currency code (or USD if not specified)
     """
 
-    code = settings.BASE_CURRENCY
+    code = common.models.InvenTreeSetting.get_setting('INVENTREE_DEFAULT_CURRENCY')
 
     if code not in CURRENCIES:
         code = 'USD'
@@ -24,6 +24,20 @@ def currency_code_default():
     return code
 
 
+def currency_code_mappings():
+    """
+    Returns the current currency choices
+    """
+    return [(a, a) for a in settings.CURRENCIES]
+
+
+def currency_codes():
+    """
+    Returns the current currency codes
+    """
+    return [a for a in settings.CURRENCIES]
+
+
 def stock_expiry_enabled():
     """
     Returns True if the stock expiry feature is enabled
diff --git a/InvenTree/common/views.py b/InvenTree/common/views.py
index 857b6b2c51..f953dffa81 100644
--- a/InvenTree/common/views.py
+++ b/InvenTree/common/views.py
@@ -13,8 +13,9 @@ from django.conf import settings
 from django.core.files.storage import FileSystemStorage
 
 from formtools.wizard.views import SessionWizardView
+from crispy_forms.helper import FormHelper
 
-from InvenTree.views import AjaxUpdateView
+from InvenTree.views import AjaxUpdateView, AjaxView
 from InvenTree.helpers import str2bool
 
 from . import models
@@ -117,7 +118,6 @@ class MultiStepFormView(SessionWizardView):
         form_steps_description: description for each form
     """
 
-    form_list = []
     form_steps_template = []
     form_steps_description = []
     file_manager = None
@@ -126,10 +126,10 @@ class MultiStepFormView(SessionWizardView):
 
     def __init__(self, *args, **kwargs):
         """ Override init method to set media folder """
-        super().__init__(*args, **kwargs)
+        super().__init__(**kwargs)
 
         self.process_media_folder()
-        
+
     def process_media_folder(self):
         """ Process media folder """
 
@@ -141,7 +141,7 @@ class MultiStepFormView(SessionWizardView):
 
     def get_template_names(self):
         """ Select template """
-        
+
         try:
             # Get template
             template = self.form_steps_template[self.steps.index]
@@ -152,7 +152,7 @@ class MultiStepFormView(SessionWizardView):
 
     def get_context_data(self, **kwargs):
         """ Update context data """
-        
+
         # Retrieve current context
         context = super().get_context_data(**kwargs)
 
@@ -176,9 +176,9 @@ class FileManagementFormView(MultiStepFormView):
 
     name = None
     form_list = [
-        ('upload', forms.UploadFile),
-        ('fields', forms.MatchField),
-        ('items', forms.MatchItem),
+        ('upload', forms.UploadFileForm),
+        ('fields', forms.MatchFieldForm),
+        ('items', forms.MatchItemForm),
     ]
     form_steps_description = [
         _("Upload File"),
@@ -188,11 +188,26 @@ class FileManagementFormView(MultiStepFormView):
     media_folder = 'file_upload/'
     extra_context_data = {}
 
-    def get_context_data(self, form, **kwargs):
+    def __init__(self, *args, **kwargs):
+        """ Initialize the FormView """
+
+        # Perform all checks and inits for MultiStepFormView
+        super().__init__(self, *args, **kwargs)
+
+        # Check for file manager class
+        if not hasattr(self, 'file_manager_class') and not issubclass(self.file_manager_class, FileManager):
+            raise NotImplementedError('A subclass of a file manager class needs to be set!')
+
+    def get_context_data(self, form=None, **kwargs):
+        """ Handle context data """
+
+        if form is None:
+            form = self.get_form()
+
         context = super().get_context_data(form=form, **kwargs)
 
         if self.steps.current in ('fields', 'items'):
-            
+
             # Get columns and row data
             self.columns = self.file_manager.columns()
             self.rows = self.file_manager.rows()
@@ -203,7 +218,7 @@ class FileManagementFormView(MultiStepFormView):
             elif self.steps.current == 'items':
                 # Set form table data
                 self.set_form_table_data(form=form)
-            
+
             # Update context
             context.update({'rows': self.rows})
             context.update({'columns': self.columns})
@@ -227,7 +242,7 @@ class FileManagementFormView(MultiStepFormView):
                 # Get file
                 file = upload_files.get('upload-file', None)
                 if file:
-                    self.file_manager = FileManager(file=file, name=self.name)
+                    self.file_manager = self.file_manager_class(file=file, name=self.name)
 
     def get_form_kwargs(self, step=None):
         """ Update kwargs to dynamically build forms """
@@ -262,13 +277,22 @@ class FileManagementFormView(MultiStepFormView):
             self.get_form_table_data(data)
             self.set_form_table_data()
             self.get_field_selection()
-            
+
             kwargs['row_data'] = self.rows
 
             return kwargs
-        
+
         return super().get_form_kwargs()
 
+    def get_form(self, step=None, data=None, files=None):
+        """ add crispy-form helper to form """
+        form = super().get_form(step=step, data=data, files=files)
+
+        form.helper = FormHelper()
+        form.helper.form_show_labels = False
+
+        return form
+
     def get_form_table_data(self, form_data):
         """ Extract table cell data from form data and fields.
         These data are used to maintain state between sessions.
@@ -327,7 +351,7 @@ class FileManagementFormView(MultiStepFormView):
                     col_id = int(s[3])
                 except ValueError:
                     continue
-                
+
                 if row_id not in self.row_data:
                     self.row_data[row_id] = {}
 
@@ -362,19 +386,20 @@ class FileManagementFormView(MultiStepFormView):
                         'name': self.column_names[idx],
                         'guess': self.column_selections[idx],
                     }
-                    
+
                     cell_data = {
                         'cell': item,
                         'idx': idx,
                         'column': column_data,
                     }
                     data.append(cell_data)
-                
+
                 row = {
                     'index': row_idx,
                     'data': data,
                     'errors': {},
                 }
+
                 self.rows.append(row)
 
         # In the item selection step: update row data with mapping to form fields
@@ -414,6 +439,33 @@ class FileManagementFormView(MultiStepFormView):
         """
         pass
 
+    def get_clean_items(self):
+        """ returns dict with all cleaned values """
+        items = {}
+
+        for form_key, form_value in self.get_all_cleaned_data().items():
+            # Split key from row value
+            try:
+                (field, idx) = form_key.split('-')
+            except ValueError:
+                continue
+
+            try:
+                if idx not in items:
+                    # Insert into items
+                    items.update({
+                        idx: {
+                            self.form_field_map[field]: form_value,
+                        }
+                    })
+                else:
+                    # Update items
+                    items[idx][self.form_field_map[field]] = form_value
+            except KeyError:
+                pass
+
+        return items
+
     def check_field_selection(self, form):
         """ Check field matching """
 
@@ -431,7 +483,7 @@ class FileManagementFormView(MultiStepFormView):
             if col in self.column_selections.values():
                 part_match_found = True
                 break
-        
+
         # If not, notify user
         if not part_match_found:
             for col in self.file_manager.ITEM_MATCH_HEADERS:
@@ -451,7 +503,7 @@ class FileManagementFormView(MultiStepFormView):
                 n = list(self.column_selections.values()).count(self.column_selections[col])
                 if n > 1 and self.column_selections[col] not in duplicates:
                     duplicates.append(self.column_selections[col])
-        
+
         # Store extra context data
         self.extra_context_data = {
             'missing_columns': missing_columns,
@@ -497,3 +549,70 @@ class FileManagementFormView(MultiStepFormView):
             return self.render(form)
 
         return super().post(*args, **kwargs)
+
+
+class FileManagementAjaxView(AjaxView):
+    """ Use a FileManagementFormView as base for a AjaxView
+    Inherit this class before inheriting the base FileManagementFormView
+
+    ajax_form_steps_template: templates for rendering ajax
+    validate: function to validate the current form -> normally point to the same function in the base FileManagementFormView
+    """
+
+    def post(self, request):
+        # check if back-step button was selected
+        wizard_back = self.request.POST.get('act-btn_back', None)
+        if wizard_back:
+            back_step_index = self.get_step_index() - 1
+            self.storage.current_step = list(self.get_form_list().keys())[back_step_index]
+            return self.renderJsonResponse(request, data={'form_valid': None})
+
+        # validate form
+        form = self.get_form(data=self.request.POST, files=self.request.FILES)
+        form_valid = self.validate(self.steps.current, form)
+
+        # check if valid
+        if not form_valid:
+            return self.renderJsonResponse(request, data={'form_valid': None})
+
+        # store the cleaned data and files.
+        self.storage.set_step_data(self.steps.current, self.process_step(form))
+        self.storage.set_step_files(self.steps.current, self.process_step_files(form))
+
+        # check if the current step is the last step
+        if self.steps.current == self.steps.last:
+            # call done - to process data, returned response is not used
+            self.render_done(form)
+            data = {'form_valid': True, 'success': _('Parts imported')}
+            return self.renderJsonResponse(request, data=data)
+        else:
+            self.storage.current_step = self.steps.next
+
+        return self.renderJsonResponse(request, data={'form_valid': None})
+
+    def get(self, request):
+        if 'reset' in request.GET:
+            # reset form
+            self.storage.reset()
+            self.storage.current_step = self.steps.first
+        return self.renderJsonResponse(request)
+
+    def renderJsonResponse(self, request, form=None, data={}, context=None):
+        """ always set the right templates before rendering """
+        self.setTemplate()
+        return super().renderJsonResponse(request, form=form, data=data, context=context)
+
+    def get_data(self):
+        data = super().get_data()
+        data['hideErrorMessage'] = '1'  # hide the error
+        buttons = [{'name': 'back', 'title': _('Previous Step')}] if self.get_step_index() > 0 else []
+        data['buttons'] = buttons  # set buttons
+        return data
+
+    def setTemplate(self):
+        """ set template name and title """
+        self.ajax_template_name = self.ajax_form_steps_template[self.get_step_index()]
+        self.ajax_form_title = self.form_steps_description[self.get_step_index()]
+
+    def validate(self, obj, form, **kwargs):
+        raise NotImplementedError('This function needs to be overridden!')
diff --git a/InvenTree/company/admin.py b/InvenTree/company/admin.py
index b339a65c0e..2c3be87c84 100644
--- a/InvenTree/company/admin.py
+++ b/InvenTree/company/admin.py
@@ -11,6 +11,7 @@ import import_export.widgets as widgets
 from .models import Company
 from .models import SupplierPart
 from .models import SupplierPriceBreak
+from .models import ManufacturerPart, ManufacturerPartParameter
 
 from part.models import Part
 
@@ -71,6 +72,92 @@ class SupplierPartAdmin(ImportExportModelAdmin):
     ]
 
 
+class ManufacturerPartResource(ModelResource):
+    """
+    Class for managing ManufacturerPart data import/export
+    """
+
+    part = Field(attribute='part', widget=widgets.ForeignKeyWidget(Part))
+
+    part_name = Field(attribute='part__full_name', readonly=True)
+
+    manufacturer = Field(attribute='manufacturer', widget=widgets.ForeignKeyWidget(Company))
+
+    manufacturer_name = Field(attribute='manufacturer__name', readonly=True)
+
+    class Meta:
+        model = ManufacturerPart
+        skip_unchanged = True
+        report_skipped = True
+        clean_model_instances = True
+
+
+class ManufacturerPartParameterInline(admin.TabularInline):
+    """
+    Inline for editing ManufacturerPartParameter objects,
+    directly from the ManufacturerPart admin view.
+    """
+
+    model = ManufacturerPartParameter
+
+
+class SupplierPartInline(admin.TabularInline):
+    """
+    Inline for the SupplierPart model
+    """
+
+    model = SupplierPart
+
+
+class ManufacturerPartAdmin(ImportExportModelAdmin):
+    """
+    Admin class for ManufacturerPart model
+    """
+
+    resource_class = ManufacturerPartResource
+
+    list_display = ('part', 'manufacturer', 'MPN')
+
+    search_fields = [
+        'manufacturer__name',
+        'part__name',
+        'MPN',
+    ]
+
+    inlines = [
+        SupplierPartInline,
+        ManufacturerPartParameterInline,
+    ]
+
+
+class ManufacturerPartParameterResource(ModelResource):
+    """
+    Class for managing ManufacturerPartParameter data import/export
+    """
+
+    class Meta:
+        model = ManufacturerPartParameter
+        skip_unchanged = True
+        report_skipped = True
+        clean_model_instance = True
+
+
+class ManufacturerPartParameterAdmin(ImportExportModelAdmin):
+    """
+    Admin class for ManufacturerPartParameter model
+    """
+
+    resource_class = ManufacturerPartParameterResource
+
+    list_display = ('manufacturer_part', 'name', 'value')
+
+    search_fields = [
+        'manufacturer_part__manufacturer__name',
+        'name',
+        'value'
+    ]
+
+
 class SupplierPriceBreakResource(ModelResource):
     """ Class for managing SupplierPriceBreak data import/export """
 
@@ -103,3 +190,6 @@ class SupplierPriceBreakAdmin(ImportExportModelAdmin):
 admin.site.register(Company, CompanyAdmin)
 admin.site.register(SupplierPart, SupplierPartAdmin)
 admin.site.register(SupplierPriceBreak, SupplierPriceBreakAdmin)
+
+admin.site.register(ManufacturerPart, ManufacturerPartAdmin)
+admin.site.register(ManufacturerPartParameter, ManufacturerPartParameterAdmin)
diff --git a/InvenTree/company/api.py b/InvenTree/company/api.py
index ff8b6d667b..6cd1e83dfa 100644
--- a/InvenTree/company/api.py
+++ b/InvenTree/company/api.py
@@ -15,11 +15,11 @@ from django.db.models import Q
 from InvenTree.helpers import str2bool
 
 from .models import Company
-from .models import ManufacturerPart
+from .models import ManufacturerPart, ManufacturerPartParameter
 from .models import SupplierPart, SupplierPriceBreak
 
 from .serializers import CompanySerializer
-from .serializers import ManufacturerPartSerializer
+from .serializers import ManufacturerPartSerializer, ManufacturerPartParameterSerializer
 from .serializers import SupplierPartSerializer, SupplierPriceBreakSerializer
 
 
@@ -103,17 +103,11 @@ class ManufacturerPartList(generics.ListCreateAPIView):
 
         # Do we wish to include extra detail?
         try:
-            kwargs['part_detail'] = str2bool(self.request.query_params.get('part_detail', None))
-        except AttributeError:
-            pass
+            params = self.request.query_params
 
-        try:
-            kwargs['manufacturer_detail'] = str2bool(self.request.query_params.get('manufacturer_detail', None))
-        except AttributeError:
-            pass
-
-        try:
-            kwargs['pretty'] = str2bool(self.request.query_params.get('pretty', None))
+            kwargs['part_detail'] = str2bool(params.get('part_detail', None))
+            kwargs['manufacturer_detail'] = str2bool(params.get('manufacturer_detail', None))
+            kwargs['pretty'] = str2bool(params.get('pretty', None))
         except AttributeError:
             pass
 
@@ -181,6 +175,86 @@ class ManufacturerPartDetail(generics.RetrieveUpdateDestroyAPIView):
     serializer_class = ManufacturerPartSerializer
 
 
+class ManufacturerPartParameterList(generics.ListCreateAPIView):
+    """
+    API endpoint for list view of ManufacturerPartParamater model.
+    """
+
+    queryset = ManufacturerPartParameter.objects.all()
+    serializer_class = ManufacturerPartParameterSerializer
+    
+    def get_serializer(self, *args, **kwargs):
+
+        # Do we wish to include any extra detail?
+        try:
+            params = self.request.query_params
+
+            optional_fields = [
+                'manufacturer_part_detail',
+            ]
+
+            for key in optional_fields:
+                kwargs[key] = str2bool(params.get(key, None))
+
+        except AttributeError:
+            pass
+
+        kwargs['context'] = self.get_serializer_context()
+
+        return self.serializer_class(*args, **kwargs)
+
+    def filter_queryset(self, queryset):
+        """
+        Custom filtering for the queryset
+        """
+
+        queryset = super().filter_queryset(queryset)
+
+        params = self.request.query_params
+
+        # Filter by manufacturer?
+        manufacturer = params.get('manufacturer', None)
+
+        if manufacturer is not None:
+            queryset = queryset.filter(manufacturer_part__manufacturer=manufacturer)
+
+        # Filter by part?
+        part = params.get('part', None)
+
+        if part is not None:
+            queryset = queryset.filter(manufacturer_part__part=part)
+
+        return queryset
+
+    filter_backends = [
+        DjangoFilterBackend,
+        filters.SearchFilter,
+        filters.OrderingFilter,
+    ]
+
+    filter_fields = [
+        'name',
+        'value',
+        'units',
+        'manufacturer_part',
+    ]
+
+    search_fields = [
+        'name',
+        'value',
+        'units',
+    ]
+
+
+class ManufacturerPartParameterDetail(generics.RetrieveUpdateDestroyAPIView):
+    """
+    API endpoint for detail view of ManufacturerPartParameter model
+    """
+
+    queryset = ManufacturerPartParameter.objects.all()
+    serializer_class = ManufacturerPartParameterSerializer
+
+
 class SupplierPartList(generics.ListCreateAPIView):
     """ API endpoint for list view of SupplierPart object
 
@@ -252,22 +326,11 @@ class SupplierPartList(generics.ListCreateAPIView):
 
         # Do we wish to include extra detail?
         try:
-            kwargs['part_detail'] = str2bool(self.request.query_params.get('part_detail', None))
-        except AttributeError:
-            pass
-
-        try:
-            kwargs['supplier_detail'] = str2bool(self.request.query_params.get('supplier_detail', None))
-        except AttributeError:
-            pass
-
-        try:
-            kwargs['manufacturer_detail'] = str2bool(self.request.query_params.get('manufacturer_detail', None))
-        except AttributeError:
-            pass
-
-        try:
-            kwargs['pretty'] = str2bool(self.request.query_params.get('pretty', None))
+            params = self.request.query_params
+            kwargs['part_detail'] = str2bool(params.get('part_detail', None))
+            kwargs['supplier_detail'] = str2bool(params.get('supplier_detail', None))
+            kwargs['manufacturer_detail'] = str2bool(params.get('manufacturer_detail', None))
+            kwargs['pretty'] = str2bool(params.get('pretty', None))
         except AttributeError:
             pass
 
@@ -333,6 +396,13 @@ class SupplierPriceBreakList(generics.ListCreateAPIView):
 
 manufacturer_part_api_urls = [
 
+    url(r'^parameter/', include([
+        url(r'^(?P<pk>\d+)/', ManufacturerPartParameterDetail.as_view(), name='api-manufacturer-part-parameter-detail'),
+
+        # Catch anything else
+        url(r'^.*$', ManufacturerPartParameterList.as_view(), name='api-manufacturer-part-parameter-list'),
+    ])),
+
     url(r'^(?P<pk>\d+)/?', ManufacturerPartDetail.as_view(), name='api-manufacturer-part-detail'),
 
     # Catch anything else
diff --git a/InvenTree/company/apps.py b/InvenTree/company/apps.py
index 4366f63434..76798c5ad4 100644
--- a/InvenTree/company/apps.py
+++ b/InvenTree/company/apps.py
@@ -44,8 +44,6 @@ class CompanyConfig(AppConfig):
                             company.image.render_variations(replace=False)
                         except FileNotFoundError:
                             logger.warning(f"Image file '{company.image}' missing")
-                            company.image = None
-                            company.save()
                         except UnidentifiedImageError:
                             logger.warning(f"Image file '{company.image}' is invalid")
         except (OperationalError, ProgrammingError):
diff --git a/InvenTree/company/fixtures/supplier_part.yaml b/InvenTree/company/fixtures/supplier_part.yaml
index 446339d58b..02cf33e12e 100644
--- a/InvenTree/company/fixtures/supplier_part.yaml
+++ b/InvenTree/company/fixtures/supplier_part.yaml
@@ -52,3 +52,10 @@
     part: 2
     supplier: 2
     SKU: 'ZERGM312'
+
+- model: company.supplierpart
+  pk: 5
+  fields:
+    part: 4
+    supplier: 2
+    SKU: 'R_4K7_0603'
diff --git a/InvenTree/company/forms.py b/InvenTree/company/forms.py
index 6ffa94b746..564b5fab53 100644
--- a/InvenTree/company/forms.py
+++ b/InvenTree/company/forms.py
@@ -6,17 +6,16 @@ Django Forms for interacting with Company app
 from __future__ import unicode_literals
 
 from InvenTree.forms import HelperForm
-from InvenTree.fields import RoundingDecimalFormField
+from InvenTree.fields import InvenTreeMoneyField, RoundingDecimalFormField
 
 from django.utils.translation import ugettext_lazy as _
 import django.forms
 
 import djmoney.settings
-from djmoney.forms.fields import MoneyField
 
 from common.settings import currency_code_default
 
-from .models import Company
+from .models import Company, ManufacturerPartParameter
 from .models import ManufacturerPart
 from .models import SupplierPart
 from .models import SupplierPriceBreak
@@ -105,6 +104,21 @@ class EditManufacturerPartForm(HelperForm):
         ]
 
 
+class EditManufacturerPartParameterForm(HelperForm):
+    """
+    Form for creating / editing a ManufacturerPartParameter object
+    """
+
+    class Meta:
+        model = ManufacturerPartParameter
+        fields = [
+            'manufacturer_part',
+            'name',
+            'value',
+            'units',
+        ]
+
+
 class EditSupplierPartForm(HelperForm):
     """ Form for editing a SupplierPart object """
 
@@ -114,9 +128,8 @@ class EditSupplierPartForm(HelperForm):
         'note': 'fa-pencil-alt',
     }
 
-    single_pricing = MoneyField(
+    single_pricing = InvenTreeMoneyField(
         label=_('Single Price'),
-        default_currency=currency_code_default(),
         help_text=_('Single quantity price'),
         decimal_places=4,
         max_digits=19,
diff --git a/InvenTree/company/migrations/0026_auto_20201110_1011.py b/InvenTree/company/migrations/0026_auto_20201110_1011.py
index c6be37b967..20ec7d2f6f 100644
--- a/InvenTree/company/migrations/0026_auto_20201110_1011.py
+++ b/InvenTree/company/migrations/0026_auto_20201110_1011.py
@@ -71,7 +71,8 @@ def migrate_currencies(apps, schema_editor):
 
         count += 1
 
-    print(f"Updated {count} SupplierPriceBreak rows")
+    if count > 0:
+        print(f"Updated {count} SupplierPriceBreak rows")
 
 def reverse_currencies(apps, schema_editor):
     """
diff --git a/InvenTree/company/migrations/0038_manufacturerpartparameter.py b/InvenTree/company/migrations/0038_manufacturerpartparameter.py
new file mode 100644
index 0000000000..dccfa715e8
--- /dev/null
+++ b/InvenTree/company/migrations/0038_manufacturerpartparameter.py
@@ -0,0 +1,27 @@
+# Generated by Django 3.2.4 on 2021-06-20 07:48
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('company', '0037_supplierpart_update_3'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='ManufacturerPartParameter',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('name', models.CharField(help_text='Parameter name', max_length=500, verbose_name='Name')),
+                ('value', models.CharField(help_text='Parameter value', max_length=500, verbose_name='Value')),
+                ('units', models.CharField(blank=True, help_text='Parameter units', max_length=64, null=True, verbose_name='Units')),
+                ('manufacturer_part', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='parameters', to='company.manufacturerpart', verbose_name='Manufacturer Part')),
+            ],
+            options={
+                'unique_together': {('manufacturer_part', 'name')},
+            },
+        ),
+    ]
diff --git a/InvenTree/company/migrations/0039_auto_20210701_0509.py b/InvenTree/company/migrations/0039_auto_20210701_0509.py
new file mode 100644
index 0000000000..094c7a5009
--- /dev/null
+++ b/InvenTree/company/migrations/0039_auto_20210701_0509.py
@@ -0,0 +1,25 @@
+# Generated by Django 3.2.4 on 2021-07-01 05:09
+
+import InvenTree.fields
+from django.db import migrations
+import djmoney.models.fields
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('company', '0038_manufacturerpartparameter'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='supplierpricebreak',
+            name='price',
+            field=InvenTree.fields.InvenTreeModelMoneyField(currency_choices=[], decimal_places=4, default_currency='', help_text='Unit price at specified quantity', max_digits=19, null=True, verbose_name='Price'),
+        ),
+        migrations.AlterField(
+            model_name='supplierpricebreak',
+            name='price_currency',
+            field=djmoney.models.fields.CurrencyField(choices=[], default='', editable=False, max_length=3),
+        ),
+    ]
diff --git a/InvenTree/company/models.py b/InvenTree/company/models.py
index a5fac00e7d..093d545f78 100644
--- a/InvenTree/company/models.py
+++ b/InvenTree/company/models.py
@@ -371,6 +371,47 @@ class ManufacturerPart(models.Model):
         return s
 
 
+class ManufacturerPartParameter(models.Model):
+    """
+    A ManufacturerPartParameter represents a key:value parameter for a MnaufacturerPart.
+
+    This is used to represent parmeters / properties for a particular manufacturer part.
+
+    Each parameter is a simple string (text) value.
+    """
+
+    class Meta:
+        unique_together = ('manufacturer_part', 'name')
+
+    manufacturer_part = models.ForeignKey(
+        ManufacturerPart,
+        on_delete=models.CASCADE,
+        related_name='parameters',
+        verbose_name=_('Manufacturer Part'),
+    )
+
+    name = models.CharField(
+        max_length=500,
+        blank=False,
+        verbose_name=_('Name'),
+        help_text=_('Parameter name')
+    )
+
+    value = models.CharField(
+        max_length=500,
+        blank=False,
+        verbose_name=_('Value'),
+        help_text=_('Parameter value')
+    )
+
+    units = models.CharField(
+        max_length=64,
+        blank=True, null=True,
+        verbose_name=_('Units'),
+        help_text=_('Parameter units')
+    )
+
+
 class SupplierPart(models.Model):
     """ Represents a unique part as provided by a Supplier
     Each SupplierPart is identified by a SKU (Supplier Part Number)
diff --git a/InvenTree/company/serializers.py b/InvenTree/company/serializers.py
index 4b1019656e..1e97756987 100644
--- a/InvenTree/company/serializers.py
+++ b/InvenTree/company/serializers.py
@@ -6,14 +6,15 @@ from rest_framework import serializers
 
 from sql_util.utils import SubqueryCount
 
-from .models import Company
-from .models import ManufacturerPart
-from .models import SupplierPart, SupplierPriceBreak
-
 from InvenTree.serializers import InvenTreeModelSerializer
+from InvenTree.serializers import InvenTreeImageSerializerField
 
 from part.serializers import PartBriefSerializer
 
+from .models import Company
+from .models import ManufacturerPart, ManufacturerPartParameter
+from .models import SupplierPart, SupplierPriceBreak
+
 
 class CompanyBriefSerializer(InvenTreeModelSerializer):
     """ Serializer for Company object (limited detail) """
@@ -52,7 +53,7 @@ class CompanySerializer(InvenTreeModelSerializer):
 
     url = serializers.CharField(source='get_absolute_url', read_only=True)
 
-    image = serializers.CharField(source='get_thumbnail_url', read_only=True)
+    image = InvenTreeImageSerializerField(required=False, allow_null=True)
 
     parts_supplied = serializers.IntegerField(read_only=True)
     parts_manufactured = serializers.IntegerField(read_only=True)
@@ -124,6 +125,35 @@ class ManufacturerPartSerializer(InvenTreeModelSerializer):
         ]
 
 
+class ManufacturerPartParameterSerializer(InvenTreeModelSerializer):
+    """
+    Serializer for the ManufacturerPartParameter model
+    """
+
+    manufacturer_part_detail = ManufacturerPartSerializer(source='manufacturer_part', many=False, read_only=True)
+
+    def __init__(self, *args, **kwargs):
+
+        man_detail = kwargs.pop('manufacturer_part_detail', False)
+
+        super(ManufacturerPartParameterSerializer, self).__init__(*args, **kwargs)
+
+        if not man_detail:
+            self.fields.pop('manufacturer_part_detail')
+
+    class Meta:
+        model = ManufacturerPartParameter
+
+        fields = [
+            'pk',
+            'manufacturer_part',
+            'manufacturer_part_detail',
+            'name',
+            'value',
+            'units',
+        ]
+
+
 class SupplierPartSerializer(InvenTreeModelSerializer):
     """ Serializer for SupplierPart object """
 
diff --git a/InvenTree/company/templates/company/company_base.html b/InvenTree/company/templates/company/company_base.html
index 1eefade272..a276f5df4f 100644
--- a/InvenTree/company/templates/company/company_base.html
+++ b/InvenTree/company/templates/company/company_base.html
@@ -139,11 +139,17 @@
 
     enableDragAndDrop(
         "#company-thumb",
-        "{% url 'company-image' company.id %}",
+        "{% url 'api-company-detail' company.id %}",
         {
             label: 'image',
+            method: 'PATCH',
             success: function(data, status, xhr) {
-                location.reload();
+
+                if (data.image) {
+                    $('#company-image').attr('src', data.image);
+                } else {
+                    location.reload();
+                }
             }
         }
     );
diff --git a/InvenTree/company/templates/company/manufacturer_part_suppliers.html b/InvenTree/company/templates/company/manufacturer_part_suppliers.html
index 647bf4750d..9f445ec215 100644
--- a/InvenTree/company/templates/company/manufacturer_part_suppliers.html
+++ b/InvenTree/company/templates/company/manufacturer_part_suppliers.html
@@ -7,7 +7,7 @@
 {% endblock %}
 
 {% block heading %}
-{% trans "Supplier Parts" %}
+{% trans "Suppliers" %}
 {% endblock %}
 
 {% block details %}
@@ -30,9 +30,44 @@
 
 {% endblock %}
 
+{% block post_content_panels %}
+
+<div class='panel panel-default panel-inventree'>
+    <div class='panel-heading'>
+        <h4>{% trans "Parameters" %}</h4>
+    </div>
+    <div class='panel-content'>
+        <div id='parameter-toolbar'>
+            <div class='btn-group'>
+                <button class='btn btn-success' id='parameter-create'>
+                    <span class='fas fa-plus-circle'></span> {% trans "New Parameter" %}
+                </button>
+                <div id='param-dropdown' class='btn-group'>
+                    <!-- TODO -->
+                </div>
+            </div>
+        </div>
+
+        <table class='table table-striped table-condensed' id='parameter-table' data-toolbar='#parameter-toolbar'></table>
+    </div>
+</div>
+
+{% endblock %}
+
 {% block js_ready %}
 {{ block.super }}
 
+$('#parameter-create').click(function() {
+    launchModalForm(
+        "{% url 'manufacturer-part-parameter-create' %}",
+        {
+            data: {
+                manufacturer_part: {{ part.id }},
+            }
+        }
+    );
+});
+
 $('#supplier-create').click(function () {
     launchModalForm(
         "{% url 'supplier-part-create' %}",
@@ -84,6 +119,16 @@ loadSupplierPartTable(
     }
 );
 
+loadManufacturerPartParameterTable(
+    "#parameter-table",
+    "{% url 'api-manufacturer-part-parameter-list' %}",
+    {
+        params: {
+            manufacturer_part: {{ part.id }},
+        }
+    }
+);
+
 linkButtonsToSelection($("#supplier-table"), ['#supplier-part-options'])
 
 {% endblock %}
\ No newline at end of file
diff --git a/InvenTree/company/test_api.py b/InvenTree/company/test_api.py
index c43280c76c..dd42b97801 100644
--- a/InvenTree/company/test_api.py
+++ b/InvenTree/company/test_api.py
@@ -50,10 +50,15 @@ class CompanyTest(InvenTreeAPITestCase):
         self.assertEqual(response.data['name'], 'ACME')
 
         # Change the name of the company
+        # Note we should not have the correct permissions (yet)
         data = response.data
         data['name'] = 'ACMOO'
-        response = self.client.patch(url, data, format='json')
-        self.assertEqual(response.status_code, status.HTTP_200_OK)
+        response = self.client.patch(url, data, format='json', expected_code=400)
+
+        self.assignRole('company.change')
+
+        response = self.client.patch(url, data, format='json', expected_code=200)
+
         self.assertEqual(response.data['name'], 'ACMOO')
 
     def test_company_search(self):
@@ -119,7 +124,9 @@ class ManufacturerTest(InvenTreeAPITestCase):
         data = {
             'MPN': 'MPN-TEST-123',
         }
+        
         response = self.client.patch(url, data, format='json')
+
         self.assertEqual(response.status_code, status.HTTP_200_OK)
         self.assertEqual(response.data['MPN'], 'MPN-TEST-123')
 
diff --git a/InvenTree/company/tests.py b/InvenTree/company/tests.py
index b1e05efe14..e4a70b077a 100644
--- a/InvenTree/company/tests.py
+++ b/InvenTree/company/tests.py
@@ -65,7 +65,7 @@ class CompanySimpleTest(TestCase):
         self.assertEqual(acme.supplied_part_count, 4)
 
         self.assertTrue(appel.has_parts)
-        self.assertEqual(appel.supplied_part_count, 3)
+        self.assertEqual(appel.supplied_part_count, 4)
 
         self.assertTrue(zerg.has_parts)
         self.assertEqual(zerg.supplied_part_count, 2)
diff --git a/InvenTree/company/urls.py b/InvenTree/company/urls.py
index 11f1be5339..51aa81f1c7 100644
--- a/InvenTree/company/urls.py
+++ b/InvenTree/company/urls.py
@@ -53,20 +53,25 @@ price_break_urls = [
     url(r'^(?P<pk>\d+)/delete/', views.PriceBreakDelete.as_view(), name='price-break-delete'),
 ]
 
-manufacturer_part_detail_urls = [
-    url(r'^edit/?', views.ManufacturerPartEdit.as_view(), name='manufacturer-part-edit'),
-
-    url(r'^suppliers/', views.ManufacturerPartDetail.as_view(template_name='company/manufacturer_part_suppliers.html'), name='manufacturer-part-suppliers'),
-
-    url('^.*$', views.ManufacturerPartDetail.as_view(template_name='company/manufacturer_part_suppliers.html'), name='manufacturer-part-detail'),
-]
-
 manufacturer_part_urls = [
     url(r'^new/?', views.ManufacturerPartCreate.as_view(), name='manufacturer-part-create'),
 
-    url(r'delete/', views.ManufacturerPartDelete.as_view(), name='manufacturer-part-delete'),
+    url(r'^delete/', views.ManufacturerPartDelete.as_view(), name='manufacturer-part-delete'),
 
-    url(r'^(?P<pk>\d+)/', include(manufacturer_part_detail_urls)),
+    # URLs for ManufacturerPartParameter views (create / edit / delete)
+    url(r'^parameter/', include([
+        url(r'^new/', views.ManufacturerPartParameterCreate.as_view(), name='manufacturer-part-parameter-create'),
+        url(r'^(?P<pk>\d)/', include([
+            url(r'^edit/', views.ManufacturerPartParameterEdit.as_view(), name='manufacturer-part-parameter-edit'),
+            url(r'^delete/', views.ManufacturerPartParameterDelete.as_view(), name='manufacturer-part-parameter-delete'),
+        ])),
+    ])),
+
+    url(r'^(?P<pk>\d+)/', include([
+        url(r'^edit/?', views.ManufacturerPartEdit.as_view(), name='manufacturer-part-edit'),
+        url(r'^suppliers/', views.ManufacturerPartDetail.as_view(template_name='company/manufacturer_part_suppliers.html'), name='manufacturer-part-suppliers'),
+        url('^.*$', views.ManufacturerPartDetail.as_view(template_name='company/manufacturer_part_suppliers.html'), name='manufacturer-part-detail'),
+    ])),
 ]
 
 supplier_part_detail_urls = [
diff --git a/InvenTree/company/views.py b/InvenTree/company/views.py
index 6de1439823..74a583710a 100644
--- a/InvenTree/company/views.py
+++ b/InvenTree/company/views.py
@@ -23,14 +23,14 @@ from InvenTree.views import AjaxCreateView, AjaxUpdateView, AjaxDeleteView
 from InvenTree.helpers import str2bool
 from InvenTree.views import InvenTreeRoleMixin
 
-from .models import Company
+from .models import Company, ManufacturerPartParameter
 from .models import ManufacturerPart
 from .models import SupplierPart
 from .models import SupplierPriceBreak
 
 from part.models import Part
 
-from .forms import EditCompanyForm
+from .forms import EditCompanyForm, EditManufacturerPartParameterForm
 from .forms import CompanyImageForm
 from .forms import EditManufacturerPartForm
 from .forms import EditSupplierPartForm
@@ -504,6 +504,66 @@ class ManufacturerPartDelete(AjaxDeleteView):
         return self.renderJsonResponse(self.request, data=data, form=self.get_form())
 
 
+class ManufacturerPartParameterCreate(AjaxCreateView):
+    """
+    View for creating a new ManufacturerPartParameter object
+    """
+
+    model = ManufacturerPartParameter
+    form_class = EditManufacturerPartParameterForm
+    ajax_form_title = _('Add Manufacturer Part Parameter')
+
+    def get_form(self):
+
+        form = super().get_form()
+
+        # Hide the manufacturer_part field if specified
+        if form.initial.get('manufacturer_part', None):
+            form.fields['manufacturer_part'].widget = HiddenInput()
+
+        return form
+
+    def get_initial(self):
+
+        initials = super().get_initial().copy()
+
+        manufacturer_part = self.get_param('manufacturer_part')
+
+        if manufacturer_part:
+            try:
+                initials['manufacturer_part'] = ManufacturerPartParameter.objects.get(pk=manufacturer_part)
+            except (ValueError, ManufacturerPartParameter.DoesNotExist):
+                pass
+
+        return initials
+
+
+class ManufacturerPartParameterEdit(AjaxUpdateView):
+    """
+    View for editing a ManufacturerPartParameter object
+    """
+
+    model = ManufacturerPartParameter
+    form_class = EditManufacturerPartParameterForm
+    ajax_form_title = _('Edit Manufacturer Part Parameter')
+
+    def get_form(self):
+        
+        form = super().get_form()
+
+        form.fields['manufacturer_part'].widget = HiddenInput()
+
+        return form
+
+
+class ManufacturerPartParameterDelete(AjaxDeleteView):
+    """
+    View for deleting a ManufacturerPartParameter object
+    """
+
+    model = ManufacturerPartParameter
+    
+
 class SupplierPartDetail(DetailView):
     """ Detail view for SupplierPart """
     model = SupplierPart
@@ -563,7 +623,8 @@ class SupplierPartEdit(AjaxUpdateView):
         supplier_part = self.get_object()
 
         if supplier_part.manufacturer_part:
-            initials['manufacturer'] = supplier_part.manufacturer_part.manufacturer.id
+            if supplier_part.manufacturer_part.manufacturer:
+                initials['manufacturer'] = supplier_part.manufacturer_part.manufacturer.id
             initials['MPN'] = supplier_part.manufacturer_part.MPN
 
         return initials
diff --git a/InvenTree/order/api.py b/InvenTree/order/api.py
index 7eda59eacb..c22d76a52e 100644
--- a/InvenTree/order/api.py
+++ b/InvenTree/order/api.py
@@ -22,9 +22,10 @@ from .models import PurchaseOrder, PurchaseOrderLineItem
 from .models import PurchaseOrderAttachment
 from .serializers import POSerializer, POLineItemSerializer, POAttachmentSerializer
 
-from .models import SalesOrder, SalesOrderLineItem
+from .models import SalesOrder, SalesOrderLineItem, SalesOrderAllocation
 from .models import SalesOrderAttachment
 from .serializers import SalesOrderSerializer, SOLineItemSerializer, SOAttachmentSerializer
+from .serializers import SalesOrderAllocationSerializer
 
 
 class POList(generics.ListCreateAPIView):
@@ -156,7 +157,7 @@ class POList(generics.ListCreateAPIView):
     ordering = '-creation_date'
 
 
-class PODetail(generics.RetrieveUpdateAPIView):
+class PODetail(generics.RetrieveUpdateDestroyAPIView):
     """ API endpoint for detail view of a PurchaseOrder object """
 
     queryset = PurchaseOrder.objects.all()
@@ -381,7 +382,7 @@ class SOList(generics.ListCreateAPIView):
     ordering = '-creation_date'
 
 
-class SODetail(generics.RetrieveUpdateAPIView):
+class SODetail(generics.RetrieveUpdateDestroyAPIView):
     """
     API endpoint for detail view of a SalesOrder object.
     """
@@ -422,17 +423,11 @@ class SOLineItemList(generics.ListCreateAPIView):
     def get_serializer(self, *args, **kwargs):
 
         try:
-            kwargs['part_detail'] = str2bool(self.request.query_params.get('part_detail', False))
-        except AttributeError:
-            pass
+            params = self.request.query_params
 
-        try:
-            kwargs['order_detail'] = str2bool(self.request.query_params.get('order_detail', False))
-        except AttributeError:
-            pass
-
-        try:
-            kwargs['allocations'] = str2bool(self.request.query_params.get('allocations', False))
+            kwargs['part_detail'] = str2bool(params.get('part_detail', False))
+            kwargs['order_detail'] = str2bool(params.get('order_detail', False))
+            kwargs['allocations'] = str2bool(params.get('allocations', False))
         except AttributeError:
             pass
 
@@ -486,6 +481,70 @@ class SOLineItemDetail(generics.RetrieveUpdateAPIView):
     serializer_class = SOLineItemSerializer
 
 
+class SOAllocationList(generics.ListCreateAPIView):
+    """
+    API endpoint for listing SalesOrderAllocation objects
+    """
+
+    queryset = SalesOrderAllocation.objects.all()
+    serializer_class = SalesOrderAllocationSerializer
+
+    def get_serializer(self, *args, **kwargs):
+
+        try:
+            params = self.request.query_params
+
+            kwargs['part_detail'] = str2bool(params.get('part_detail', False))
+            kwargs['item_detail'] = str2bool(params.get('item_detail', False))
+            kwargs['order_detail'] = str2bool(params.get('order_detail', False))
+            kwargs['location_detail'] = str2bool(params.get('location_detail', False))
+        except AttributeError:
+            pass
+
+        return self.serializer_class(*args, **kwargs)
+
+    def filter_queryset(self, queryset):
+
+        queryset = super().filter_queryset(queryset)
+
+        # Filter by order
+        params = self.request.query_params
+
+        # Filter by "part" reference
+        part = params.get('part', None)
+
+        if part is not None:
+            queryset = queryset.filter(item__part=part)
+
+        # Filter by "order" reference
+        order = params.get('order', None)
+
+        if order is not None:
+            queryset = queryset.filter(line__order=order)
+
+        # Filter by "outstanding" order status
+        outstanding = params.get('outstanding', None)
+
+        if outstanding is not None:
+            outstanding = str2bool(outstanding)
+
+            if outstanding:
+                queryset = queryset.filter(line__order__status__in=SalesOrderStatus.OPEN)
+            else:
+                queryset = queryset.exclude(line__order__status__in=SalesOrderStatus.OPEN)
+
+        return queryset
+
+    filter_backends = [
+        DjangoFilterBackend,
+    ]
+
+    # Default filterable fields
+    filter_fields = [
+        'item',
+    ]
+
+
 class POAttachmentList(generics.ListCreateAPIView, AttachmentMixin):
     """
     API endpoint for listing (and creating) a PurchaseOrderAttachment (file upload)
@@ -494,10 +553,6 @@ class POAttachmentList(generics.ListCreateAPIView, AttachmentMixin):
     queryset = PurchaseOrderAttachment.objects.all()
     serializer_class = POAttachmentSerializer
 
-    filter_fields = [
-        'order',
-    ]
-
 
 order_api_urls = [
     # API endpoints for purchase orders
@@ -512,14 +567,26 @@ order_api_urls = [
     url(r'^po-line/$', POLineItemList.as_view(), name='api-po-line-list'),
 
     # API endpoints for sales ordesr
-    url(r'^so/(?P<pk>\d+)/$', SODetail.as_view(), name='api-so-detail'),
-    url(r'so/attachment/', include([
-        url(r'^.*$', SOAttachmentList.as_view(), name='api-so-attachment-list'),
+    url(r'^so/', include([
+        url(r'^(?P<pk>\d+)/$', SODetail.as_view(), name='api-so-detail'),
+        url(r'attachment/', include([
+            url(r'^.*$', SOAttachmentList.as_view(), name='api-so-attachment-list'),
+        ])),
+
+        # List all sales orders
+        url(r'^.*$', SOList.as_view(), name='api-so-list'),
     ])),
 
-    url(r'^so/.*$', SOList.as_view(), name='api-so-list'),
-
     # API endpoints for sales order line items
-    url(r'^so-line/(?P<pk>\d+)/$', SOLineItemDetail.as_view(), name='api-so-line-detail'),
-    url(r'^so-line/$', SOLineItemList.as_view(), name='api-so-line-list'),
+    url(r'^so-line/', include([
+        url(r'^(?P<pk>\d+)/$', SOLineItemDetail.as_view(), name='api-so-line-detail'),
+        url(r'^$', SOLineItemList.as_view(), name='api-so-line-list'),
+    ])),
+
+    # API endpoints for sales order allocations
+    url(r'^so-allocation', include([
+
+        # List all sales order allocations
+        url(r'^.*$', SOAllocationList.as_view(), name='api-so-allocation-list'),
+    ])),
 ]
diff --git a/InvenTree/order/fixtures/order.yaml b/InvenTree/order/fixtures/order.yaml
index 6b65c20786..769f7702e5 100644
--- a/InvenTree/order/fixtures/order.yaml
+++ b/InvenTree/order/fixtures/order.yaml
@@ -68,6 +68,7 @@
     order: 1
     part: 1
     quantity: 100
+    destination: 5 # Desk/Drawer_1
 
 # 250 x ACME0002 (M2x4 LPHS)
 # Partially received (50)
@@ -95,3 +96,10 @@
     part: 3
     quantity: 100
 
+# 1 x R_4K7_0603
+- model: order.purchaseorderlineitem
+  pk: 23
+  fields:
+    order: 1
+    part: 5
+    quantity: 1
diff --git a/InvenTree/order/forms.py b/InvenTree/order/forms.py
index 3973888e95..f094caafbe 100644
--- a/InvenTree/order/forms.py
+++ b/InvenTree/order/forms.py
@@ -11,9 +11,13 @@ from django.utils.translation import ugettext_lazy as _
 from mptt.fields import TreeNodeChoiceField
 
 from InvenTree.forms import HelperForm
-from InvenTree.fields import RoundingDecimalFormField
+from InvenTree.fields import InvenTreeMoneyField, RoundingDecimalFormField
 from InvenTree.fields import DatePickerFormField
 
+from InvenTree.helpers import clean_decimal
+
+from common.forms import MatchItemForm
+
 import part.models
 
 from stock.models import StockLocation
@@ -79,12 +83,17 @@ class ShipSalesOrderForm(HelperForm):
 
 class ReceivePurchaseOrderForm(HelperForm):
 
-    location = TreeNodeChoiceField(queryset=StockLocation.objects.all(), required=True, label=_('Location'), help_text=_('Receive parts to this location'))
+    location = TreeNodeChoiceField(
+        queryset=StockLocation.objects.all(),
+        required=True,
+        label=_("Destination"),
+        help_text=_("Receive parts to this location"),
+    )
 
     class Meta:
         model = PurchaseOrder
         fields = [
-            'location',
+            "location",
         ]
 
 
@@ -195,6 +204,7 @@ class EditPurchaseOrderLineItemForm(HelperForm):
             'quantity',
             'reference',
             'purchase_price',
+            'destination',
             'notes',
         ]
 
@@ -285,3 +295,36 @@ class EditSalesOrderAllocationForm(HelperForm):
             'line',
             'item',
             'quantity']
+
+
+class OrderMatchItemForm(MatchItemForm):
+    """ Override MatchItemForm fields """
+
+    def get_special_field(self, col_guess, row, file_manager):
+        """ Set special fields """
+
+        # set quantity field
+        if 'quantity' in col_guess.lower():
+            return forms.CharField(
+                required=False,
+                widget=forms.NumberInput(attrs={
+                    'name': 'quantity' + str(row['index']),
+                    'class': 'numberinput',
+                    'type': 'number',
+                    'min': '0',
+                    'step': 'any',
+                    'value': clean_decimal(row.get('quantity', '')),
+                })
+            )
+        # set price field
+        elif 'price' in col_guess.lower():
+            return InvenTreeMoneyField(
+                label=_(col_guess),
+                decimal_places=5,
+                max_digits=19,
+                required=False,
+                default_amount=clean_decimal(row.get('purchase_price', '')),
+            )
+
+        # return default
+        return super().get_special_field(col_guess, row, file_manager)
diff --git a/InvenTree/order/migrations/0046_purchaseorderlineitem_destination.py b/InvenTree/order/migrations/0046_purchaseorderlineitem_destination.py
new file mode 100644
index 0000000000..fa08c91e0d
--- /dev/null
+++ b/InvenTree/order/migrations/0046_purchaseorderlineitem_destination.py
@@ -0,0 +1,29 @@
+# Generated by Django 3.2 on 2021-05-13 22:38
+
+from django.db import migrations
+import django.db.models.deletion
+import mptt.fields
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("stock", "0063_auto_20210511_2343"),
+        ("order", "0045_auto_20210504_1946"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="purchaseorderlineitem",
+            name="destination",
+            field=mptt.fields.TreeForeignKey(
+                blank=True,
+                help_text="Where does the Purchaser want this item to be stored?",
+                null=True,
+                on_delete=django.db.models.deletion.DO_NOTHING,
+                related_name="po_lines",
+                to="stock.stocklocation",
+                verbose_name="Destination",
+            ),
+        ),
+    ]
diff --git a/InvenTree/order/migrations/0047_auto_20210701_0509.py b/InvenTree/order/migrations/0047_auto_20210701_0509.py
new file mode 100644
index 0000000000..1f732e5f61
--- /dev/null
+++ b/InvenTree/order/migrations/0047_auto_20210701_0509.py
@@ -0,0 +1,35 @@
+# Generated by Django 3.2.4 on 2021-07-01 05:09
+
+import InvenTree.fields
+from django.db import migrations
+import djmoney.models.fields
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('order', '0046_purchaseorderlineitem_destination'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='purchaseorderlineitem',
+            name='purchase_price',
+            field=InvenTree.fields.InvenTreeModelMoneyField(blank=True, currency_choices=[], decimal_places=4, default_currency='', help_text='Unit purchase price', max_digits=19, null=True, verbose_name='Purchase Price'),
+        ),
+        migrations.AlterField(
+            model_name='purchaseorderlineitem',
+            name='purchase_price_currency',
+            field=djmoney.models.fields.CurrencyField(choices=[], default='', editable=False, max_length=3),
+        ),
+        migrations.AlterField(
+            model_name='salesorderlineitem',
+            name='sale_price',
+            field=InvenTree.fields.InvenTreeModelMoneyField(blank=True, currency_choices=[], decimal_places=4, default_currency='', help_text='Unit sale price', max_digits=19, null=True, verbose_name='Sale Price'),
+        ),
+        migrations.AlterField(
+            model_name='salesorderlineitem',
+            name='sale_price_currency',
+            field=djmoney.models.fields.CurrencyField(choices=[], default='', editable=False, max_length=3),
+        ),
+    ]
diff --git a/InvenTree/order/models.py b/InvenTree/order/models.py
index 49504b6d89..669603f5ec 100644
--- a/InvenTree/order/models.py
+++ b/InvenTree/order/models.py
@@ -17,18 +17,15 @@ from django.contrib.auth.models import User
 from django.urls import reverse
 from django.utils.translation import ugettext_lazy as _
 
-from common.settings import currency_code_default
-
 from markdownx.models import MarkdownxField
-
-from djmoney.models.fields import MoneyField
+from mptt.models import TreeForeignKey
 
 from users import models as UserModels
 from part import models as PartModels
 from stock import models as stock_models
 from company.models import Company, SupplierPart
 
-from InvenTree.fields import RoundingDecimalField
+from InvenTree.fields import InvenTreeModelMoneyField, RoundingDecimalField
 from InvenTree.helpers import decimal2string, increment, getSetting
 from InvenTree.status_codes import PurchaseOrderStatus, SalesOrderStatus, StockStatus, StockHistoryCode
 from InvenTree.models import InvenTreeAttachment
@@ -663,15 +660,37 @@ class PurchaseOrderLineItem(OrderLineItem):
 
     received = models.DecimalField(decimal_places=5, max_digits=15, default=0, verbose_name=_('Received'), help_text=_('Number of items received'))
 
-    purchase_price = MoneyField(
+    purchase_price = InvenTreeModelMoneyField(
         max_digits=19,
         decimal_places=4,
-        default_currency=currency_code_default(),
         null=True, blank=True,
         verbose_name=_('Purchase Price'),
         help_text=_('Unit purchase price'),
     )
 
+    destination = TreeForeignKey(
+        'stock.StockLocation', on_delete=models.DO_NOTHING,
+        verbose_name=_('Destination'),
+        related_name='po_lines',
+        blank=True, null=True,
+        help_text=_('Where does the Purchaser want this item to be stored?')
+    )
+
+    def get_destination(self):
+        """Show where the line item is or should be placed"""
+        # NOTE: If a line item gets split when recieved, only an arbitrary
+        # stock items location will be reported as the location for the
+        # entire line.
+        for stock in stock_models.StockItem.objects.filter(
+            supplier_part=self.part, purchase_order=self.order
+        ):
+            if stock.location:
+                return stock.location
+        if self.destination:
+            return self.destination
+        if self.part and self.part.part and self.part.part.default_location:
+            return self.part.part.default_location
+
     def remaining(self):
         """ Calculate the number of items remaining to be received """
         r = self.quantity - self.received
@@ -692,10 +711,9 @@ class SalesOrderLineItem(OrderLineItem):
 
     part = models.ForeignKey('part.Part', on_delete=models.SET_NULL, related_name='sales_order_line_items', null=True, verbose_name=_('Part'), help_text=_('Part'), limit_choices_to={'salable': True})
 
-    sale_price = MoneyField(
+    sale_price = InvenTreeModelMoneyField(
         max_digits=19,
         decimal_places=4,
-        default_currency=currency_code_default(),
         null=True, blank=True,
         verbose_name=_('Sale Price'),
         help_text=_('Unit sale price'),
diff --git a/InvenTree/order/serializers.py b/InvenTree/order/serializers.py
index 6091140313..e527b3cec9 100644
--- a/InvenTree/order/serializers.py
+++ b/InvenTree/order/serializers.py
@@ -17,6 +17,7 @@ from InvenTree.serializers import InvenTreeAttachmentSerializerField
 
 from company.serializers import CompanyBriefSerializer, SupplierPartSerializer
 from part.serializers import PartBriefSerializer
+from stock.serializers import LocationBriefSerializer, StockItemSerializer, LocationSerializer
 
 from .models import PurchaseOrder, PurchaseOrderLineItem
 from .models import PurchaseOrderAttachment, SalesOrderAttachment
@@ -41,7 +42,7 @@ class POSerializer(InvenTreeModelSerializer):
         """
         Add extra information to the queryset
 
-        - Number of liens in the PurchaseOrder
+        - Number of lines in the PurchaseOrder
         - Overdue status of the PurchaseOrder
         """
 
@@ -91,8 +92,10 @@ class POSerializer(InvenTreeModelSerializer):
         ]
 
         read_only_fields = [
-            'reference',
             'status'
+            'issue_date',
+            'complete_date',
+            'creation_date',
         ]
 
 
@@ -108,14 +111,17 @@ class POLineItemSerializer(InvenTreeModelSerializer):
             self.fields.pop('part_detail')
             self.fields.pop('supplier_part_detail')
 
-    quantity = serializers.FloatField()
-    received = serializers.FloatField()
+    # TODO: Once https://github.com/inventree/InvenTree/issues/1687 is fixed, remove default values
+    quantity = serializers.FloatField(default=1)
+    received = serializers.FloatField(default=0)
 
     part_detail = PartBriefSerializer(source='get_base_part', many=False, read_only=True)
     supplier_part_detail = SupplierPartSerializer(source='part', many=False, read_only=True)
 
     purchase_price_string = serializers.CharField(source='purchase_price', read_only=True)
 
+    destination = LocationBriefSerializer(source='get_destination', read_only=True)
+
     class Meta:
         model = PurchaseOrderLineItem
 
@@ -132,6 +138,7 @@ class POLineItemSerializer(InvenTreeModelSerializer):
             'purchase_price',
             'purchase_price_currency',
             'purchase_price_string',
+            'destination',
         ]
 
 
@@ -221,8 +228,9 @@ class SalesOrderSerializer(InvenTreeModelSerializer):
         ]
 
         read_only_fields = [
-            'reference',
-            'status'
+            'status',
+            'creation_date',
+            'shipment_date',
         ]
 
 
@@ -232,11 +240,38 @@ class SalesOrderAllocationSerializer(InvenTreeModelSerializer):
     This includes some fields from the related model objects.
     """
 
-    location_path = serializers.CharField(source='get_location_path')
-    location_id = serializers.IntegerField(source='get_location')
-    serial = serializers.CharField(source='get_serial')
-    po = serializers.CharField(source='get_po')
-    quantity = serializers.FloatField()
+    part = serializers.PrimaryKeyRelatedField(source='item.part', read_only=True)
+    order = serializers.PrimaryKeyRelatedField(source='line.order', many=False, read_only=True)
+    serial = serializers.CharField(source='get_serial', read_only=True)
+    quantity = serializers.FloatField(read_only=True)
+    location = serializers.PrimaryKeyRelatedField(source='item.location', many=False, read_only=True)
+
+    # Extra detail fields
+    order_detail = SalesOrderSerializer(source='line.order', many=False, read_only=True)
+    part_detail = PartBriefSerializer(source='item.part', many=False, read_only=True)
+    item_detail = StockItemSerializer(source='item', many=False, read_only=True)
+    location_detail = LocationSerializer(source='item.location', many=False, read_only=True)
+
+    def __init__(self, *args, **kwargs):
+
+        order_detail = kwargs.pop('order_detail', False)
+        part_detail = kwargs.pop('part_detail', False)
+        item_detail = kwargs.pop('item_detail', False)
+        location_detail = kwargs.pop('location_detail', False)
+
+        super().__init__(*args, **kwargs)
+
+        if not order_detail:
+            self.fields.pop('order_detail')
+
+        if not part_detail:
+            self.fields.pop('part_detail')
+
+        if not item_detail:
+            self.fields.pop('item_detail')
+
+        if not location_detail:
+            self.fields.pop('location_detail')
 
     class Meta:
         model = SalesOrderAllocation
@@ -246,10 +281,14 @@ class SalesOrderAllocationSerializer(InvenTreeModelSerializer):
             'line',
             'serial',
             'quantity',
-            'location_id',
-            'location_path',
-            'po',
+            'location',
+            'location_detail',
             'item',
+            'item_detail',
+            'order',
+            'order_detail',
+            'part',
+            'part_detail',
         ]
 
 
@@ -277,7 +316,9 @@ class SOLineItemSerializer(InvenTreeModelSerializer):
     part_detail = PartBriefSerializer(source='part', many=False, read_only=True)
     allocations = SalesOrderAllocationSerializer(many=True, read_only=True)
 
-    quantity = serializers.FloatField()
+    # TODO: Once https://github.com/inventree/InvenTree/issues/1687 is fixed, remove default values
+    quantity = serializers.FloatField(default=1)
+
     allocated = serializers.FloatField(source='allocated_quantity', read_only=True)
     fulfilled = serializers.FloatField(source='fulfilled_quantity', read_only=True)
     sale_price_string = serializers.CharField(source='sale_price', read_only=True)
diff --git a/InvenTree/order/templates/order/order_base.html b/InvenTree/order/templates/order/order_base.html
index 642f866506..c7ba6be8a4 100644
--- a/InvenTree/order/templates/order/order_base.html
+++ b/InvenTree/order/templates/order/order_base.html
@@ -75,7 +75,7 @@ src="{% static 'img/blank_image.png' %}"
     <tr>
         <td><span class='fas fa-hashtag'></span></td>
         <td>{% trans "Order Reference" %}</td>
-        <td>{{ order.reference }}{% include "clip.html"%}</td>
+        <td>{% settings_value 'PURCHASEORDER_REFERENCE_PREFIX' %}{{ order.reference }}{% include "clip.html"%}</td>
     </tr>
     <tr>
         <td><span class='fas fa-info'></span></td>
diff --git a/InvenTree/order/templates/order/order_wizard/match_parts.html b/InvenTree/order/templates/order/order_wizard/match_parts.html
index f97edff913..e0f030bad5 100644
--- a/InvenTree/order/templates/order/order_wizard/match_parts.html
+++ b/InvenTree/order/templates/order/order_wizard/match_parts.html
@@ -2,6 +2,7 @@
 {% load inventree_extras %}
 {% load i18n %}
 {% load static %}
+{% load crispy_forms_tags %}
 
 {% block form_alert %}
 {% if form.errors %}
@@ -67,7 +68,7 @@
                 <td>
                     {% for field in form.visible_fields %}
                         {% if field.name == row.quantity %}
-                            {{ field }}
+                            {{ field|as_crispy_field }}
                         {% endif %}
                     {% endfor %}
                     {% if row.errors.quantity %}
@@ -80,19 +81,19 @@
                     {% if item.column.guess == 'Purchase_Price' %}
                         {% for field in form.visible_fields %}
                             {% if field.name == row.purchase_price %}
-                                {{ field }}
+                                {{ field|as_crispy_field }}
                             {% endif %}
                         {% endfor %}
                     {% elif item.column.guess == 'Reference' %}
                         {% for field in form.visible_fields %}
                             {% if field.name == row.reference %}
-                                {{ field }}
+                                {{ field|as_crispy_field }}
                             {% endif %}
                         {% endfor %}
                     {% elif item.column.guess == 'Notes' %}
                         {% for field in form.visible_fields %}
                             {% if field.name == row.notes %}
-                                {{ field }}
+                                {{ field|as_crispy_field }}
                             {% endif %}
                         {% endfor %}
                     {% else %}
diff --git a/InvenTree/order/templates/order/order_wizard/select_parts.html b/InvenTree/order/templates/order/order_wizard/select_parts.html
index 28b4a36213..a02113fa18 100644
--- a/InvenTree/order/templates/order/order_wizard/select_parts.html
+++ b/InvenTree/order/templates/order/order_wizard/select_parts.html
@@ -4,6 +4,8 @@
 {% load i18n %}
 
 {% block form %}
+{% default_currency as currency %}
+{% settings_value 'PART_SHOW_PRICE_IN_FORMS' as show_price %}
 
 <h4>
     {% trans "Step 1 of 2 - Select Part Suppliers" %}
@@ -49,7 +51,13 @@
                         <select class='select' id='id_supplier_part_{{ part.id }}' name="part-supplier-{{ part.id }}">
                             <option value=''>---------</option>
                             {% for supplier in part.supplier_parts.all %}
-                            <option value="{{ supplier.id }}"{% if part.order_supplier == supplier.id %} selected="selected"{% endif %}>{{ supplier }}</option>
+                            <option value="{{ supplier.id }}"{% if part.order_supplier == supplier.id %} selected="selected"{% endif %}>
+                                {% if show_price %}
+                                    {% call_method supplier 'get_price' part.order_quantity as price %}
+                                    {% if price != None %}{% include "price.html" with price=price %}{% else %}{% trans 'No price' %}{% endif %} - 
+                                {% endif %}
+                                {{ supplier }}
+                            </option>
                             {% endfor %}
                         </select>
                     </div>
diff --git a/InvenTree/order/templates/order/po_attachments.html b/InvenTree/order/templates/order/po_attachments.html
index a0ab77975a..40052c1ec6 100644
--- a/InvenTree/order/templates/order/po_attachments.html
+++ b/InvenTree/order/templates/order/po_attachments.html
@@ -57,8 +57,6 @@ $("#attachment-table").on('click', '.attachment-delete-button', function() {
 
     var url = `/order/purchase-order/attachment/${button.attr('pk')}/delete/`;
 
-    console.log("url: " + url);
-
     launchModalForm(url, {
         reload: true,
     });
diff --git a/InvenTree/order/templates/order/purchase_order_detail.html b/InvenTree/order/templates/order/purchase_order_detail.html
index 08236fe773..0ad73923a2 100644
--- a/InvenTree/order/templates/order/purchase_order_detail.html
+++ b/InvenTree/order/templates/order/purchase_order_detail.html
@@ -139,7 +139,7 @@ $("#po-table").inventreeTable({
                 }
             },
             footerFormatter:  function() {
-                return 'Total'
+                return '{% trans "Total" %}'
             }
         },
         {
@@ -234,6 +234,10 @@ $("#po-table").inventreeTable({
                 return (progressA < progressB) ? 1 : -1;
             }
         },
+        {
+            field: 'destination.pathstring',
+            title: '{% trans "Destination" %}',
+        },
         {
             field: 'notes',
             title: '{% trans "Notes" %}',
diff --git a/InvenTree/order/templates/order/receive_parts.html b/InvenTree/order/templates/order/receive_parts.html
index 35ce4b6513..bfddf01ce9 100644
--- a/InvenTree/order/templates/order/receive_parts.html
+++ b/InvenTree/order/templates/order/receive_parts.html
@@ -22,6 +22,7 @@
             <th>{% trans "Received" %}</th>
             <th>{% trans "Receive" %}</th>
             <th>{% trans "Status" %}</th>
+            <th>{% trans "Destination" %}</th>
             <th></th>
         </tr>
         {% for line in lines %}
@@ -53,6 +54,9 @@
                     </select>
                 </div>
             </td>
+            <td>
+                {{ line.get_destination }}
+            </td>
             <td>
                 <button class='btn btn-default btn-remove' onClick="removeOrderRowFromOrderWizard()" id='del_item_{{ line.id }}' title='{% trans "Remove line" %}' type='button'>
                     <span row='line_row_{{ line.id }}' class='fas fa-times-circle icon-red'></span>
diff --git a/InvenTree/order/templates/order/sales_order_base.html b/InvenTree/order/templates/order/sales_order_base.html
index d3f4ba74a2..b342cefe66 100644
--- a/InvenTree/order/templates/order/sales_order_base.html
+++ b/InvenTree/order/templates/order/sales_order_base.html
@@ -77,7 +77,7 @@ src="{% static 'img/blank_image.png' %}"
     <tr>
         <td><span class='fas fa-hashtag'></span></td>
         <td>{% trans "Order Reference" %}</td>
-        <td>{{ order.reference }}{% include "clip.html"%}</td>
+        <td>{% settings_value 'SALESORDER_REFERENCE_PREFIX' %}{{ order.reference }}{% include "clip.html"%}</td>
     </tr>
     <tr>
         <td><span class='fas fa-info'></span></td>
diff --git a/InvenTree/order/templates/order/sales_order_detail.html b/InvenTree/order/templates/order/sales_order_detail.html
index a90e61bff9..b760409fe4 100644
--- a/InvenTree/order/templates/order/sales_order_detail.html
+++ b/InvenTree/order/templates/order/sales_order_detail.html
@@ -81,10 +81,10 @@ function showAllocationSubTable(index, row, element) {
             },
         },
         {
-            field: 'location_id',
+            field: 'location',
             title: 'Location',
             formatter: function(value, row, index, field) {
-                return renderLink(row.location_path, `/stock/location/${row.location_id}/`);
+                return renderLink(row.location_path, `/stock/location/${row.location}/`);
             },
         },
         {
@@ -199,6 +199,7 @@ $("#so-lines-table").inventreeTable({
     detailFormatter: showFulfilledSubTable,
     {% endif %}
     {% endif %}
+    showFooter: true,
     columns: [
         {
             field: 'pk',
@@ -217,7 +218,10 @@ $("#so-lines-table").inventreeTable({
                 } else {
                     return '-';
                 }
-            }
+            },
+            footerFormatter:  function() {
+                return '{% trans "Total" %}'
+            },
         },
         {
             sortable: true,
@@ -228,6 +232,13 @@ $("#so-lines-table").inventreeTable({
             sortable: true,
             field: 'quantity',
             title: '{% trans "Quantity" %}',
+            footerFormatter: function(data) {
+                return data.map(function (row) {
+                  return +row['quantity']
+                }).reduce(function (sum, i) {
+                  return sum + i
+                }, 0)
+            },
         },
         {
             sortable: true,
@@ -237,6 +248,26 @@ $("#so-lines-table").inventreeTable({
                 return row.sale_price_string || row.sale_price;
             }
         },
+        {
+            sortable: true,
+            title: '{% trans "Total price" %}',
+            formatter: function(value, row) {
+                var total = row.sale_price * row.quantity;
+                var formatter = new Intl.NumberFormat('en-US', {style: 'currency', currency: row.sale_price_currency});
+                return formatter.format(total)
+            },
+            footerFormatter: function(data) {
+                var total = data.map(function (row) {
+                  return +row['sale_price']*row['quantity']
+                }).reduce(function (sum, i) {
+                  return sum + i
+                }, 0)
+                var currency = (data.slice(-1)[0] && data.slice(-1)[0].sale_price_currency)  || 'USD';
+                var formatter = new Intl.NumberFormat('en-US', {style: 'currency', currency: currency});
+                return formatter.format(total)
+              }
+        },
+
         {
             field: 'allocated',
             {% if order.status == SalesOrderStatus.PENDING %}
diff --git a/InvenTree/order/test_api.py b/InvenTree/order/test_api.py
index ee77f429e1..24ca8581d9 100644
--- a/InvenTree/order/test_api.py
+++ b/InvenTree/order/test_api.py
@@ -110,6 +110,96 @@ class PurchaseOrderTest(OrderTest):
 
         self.assertEqual(response.status_code, status.HTTP_200_OK)
 
+    def test_po_operations(self):
+        """
+        Test that we can create / edit and delete a PurchaseOrder via the API
+        """
+
+        n = PurchaseOrder.objects.count()
+
+        url = reverse('api-po-list')
+
+        # Initially we do not have "add" permission for the PurchaseOrder model,
+        # so this POST request should return 403
+        response = self.post(
+            url,
+            {
+                'supplier': 1,
+                'reference': '123456789-xyz',
+                'description': 'PO created via the API',
+            },
+            expected_code=403
+        )
+
+        # And no new PurchaseOrder objects should have been created
+        self.assertEqual(PurchaseOrder.objects.count(), n)
+
+        # Ok, now let's give this user the correct permission
+        self.assignRole('purchase_order.add')
+
+        # Initially we do not have "add" permission for the PurchaseOrder model,
+        # so this POST request should return 403
+        response = self.post(
+            url,
+            {
+                'supplier': 1,
+                'reference': '123456789-xyz',
+                'description': 'PO created via the API',
+            },
+            expected_code=201
+        )
+
+        self.assertEqual(PurchaseOrder.objects.count(), n + 1)
+
+        pk = response.data['pk']
+
+        # Try to create a PO with identical reference (should fail!)
+        response = self.post(
+            url,
+            {
+                'supplier': 1,
+                'reference': '123456789-xyz',
+                'description': 'A different description',
+            },
+            expected_code=400
+        )
+
+        self.assertEqual(PurchaseOrder.objects.count(), n + 1)
+
+        url = reverse('api-po-detail', kwargs={'pk': pk})
+
+        # Get detail info!
+        response = self.get(url)
+        self.assertEqual(response.data['pk'], pk)
+        self.assertEqual(response.data['reference'], '123456789-xyz')
+
+        # Try to alter (edit) the PurchaseOrder
+        response = self.patch(
+            url,
+            {
+                'reference': '12345-abc',
+            },
+            expected_code=200
+        )
+
+        # Reference should have changed
+        self.assertEqual(response.data['reference'], '12345-abc')
+
+        # Now, let's try to delete it!
+        # Initially, we do *not* have the required permission!
+        response = self.delete(url, expected_code=403)
+
+        # Now, add the "delete" permission!
+        self.assignRole("purchase_order.delete")
+
+        response = self.delete(url, expected_code=204)
+
+        # Number of PurchaseOrder objects should have decreased
+        self.assertEqual(PurchaseOrder.objects.count(), n)
+
+        # And if we try to access the detail view again, it has gone
+        response = self.get(url, expected_code=404)
+
 
 class SalesOrderTest(OrderTest):
     """
@@ -158,8 +248,6 @@ class SalesOrderTest(OrderTest):
 
         response = self.get(url)
 
-        self.assertEqual(response.status_code, 200)
-
         data = response.data
 
         self.assertEqual(data['pk'], 1)
@@ -168,6 +256,87 @@ class SalesOrderTest(OrderTest):
 
         url = reverse('api-so-attachment-list')
 
-        response = self.get(url)
+        self.get(url)
 
-        self.assertEqual(response.status_code, status.HTTP_200_OK)
+    def test_so_operations(self):
+        """
+        Test that we can create / edit and delete a SalesOrder via the API
+        """
+
+        n = SalesOrder.objects.count()
+
+        url = reverse('api-so-list')
+
+        # Initially we do not have "add" permission for the SalesOrder model,
+        # so this POST request should return 403 (denied)
+        response = self.post(
+            url,
+            {
+                'customer': 4,
+                'reference': '12345',
+                'description': 'Sales order',
+            },
+            expected_code=403,
+        )
+
+        self.assignRole('sales_order.add')
+
+        # Now we should be able to create a SalesOrder via the API
+        response = self.post(
+            url,
+            {
+                'customer': 4,
+                'reference': '12345',
+                'description': 'Sales order',
+            },
+            expected_code=201
+        )
+
+        # Check that the new order has been created
+        self.assertEqual(SalesOrder.objects.count(), n + 1)
+
+        # Grab the PK for the newly created SalesOrder
+        pk = response.data['pk']
+
+        # Try to create a SO with identical reference (should fail)
+        response = self.post(
+            url,
+            {
+                'customer': 4,
+                'reference': '12345',
+                'description': 'Another sales order',
+            },
+            expected_code=400
+        )
+
+        url = reverse('api-so-detail', kwargs={'pk': pk})
+
+        # Extract detail info for the SalesOrder
+        response = self.get(url)
+        self.assertEqual(response.data['reference'], '12345')
+
+        # Try to alter (edit) the SalesOrder
+        response = self.patch(
+            url,
+            {
+                'reference': '12345-a',
+            },
+            expected_code=200
+        )
+
+        # Reference should have changed
+        self.assertEqual(response.data['reference'], '12345-a')
+
+        # Now, let's try to delete this SalesOrder
+        # Initially, we do not have the required permission
+        response = self.delete(url, expected_code=403)
+
+        self.assignRole('sales_order.delete')
+
+        response = self.delete(url, expected_code=204)
+
+        # Check that the number of sales orders has decreased
+        self.assertEqual(SalesOrder.objects.count(), n)
+
+        # And the resource should no longer be available
+        response = self.get(url, expected_code=404)
diff --git a/InvenTree/order/tests.py b/InvenTree/order/tests.py
index 2bd4abea30..5452aec383 100644
--- a/InvenTree/order/tests.py
+++ b/InvenTree/order/tests.py
@@ -87,7 +87,7 @@ class OrderTest(TestCase):
         order = PurchaseOrder.objects.get(pk=1)
 
         self.assertEqual(order.status, PurchaseOrderStatus.PENDING)
-        self.assertEqual(order.lines.count(), 3)
+        self.assertEqual(order.lines.count(), 4)
 
         sku = SupplierPart.objects.get(SKU='ACME-WIDGET')
         part = sku.part
@@ -105,11 +105,11 @@ class OrderTest(TestCase):
         order.add_line_item(sku, 100)
 
         self.assertEqual(part.on_order, 100)
-        self.assertEqual(order.lines.count(), 4)
+        self.assertEqual(order.lines.count(), 5)
 
         # Order the same part again (it should be merged)
         order.add_line_item(sku, 50)
-        self.assertEqual(order.lines.count(), 4)
+        self.assertEqual(order.lines.count(), 5)
         self.assertEqual(part.on_order, 150)
 
         # Try to order a supplier part from the wrong supplier
@@ -163,7 +163,7 @@ class OrderTest(TestCase):
         loc = StockLocation.objects.get(id=1)
 
         # There should be two lines against this order
-        self.assertEqual(len(order.pending_line_items()), 3)
+        self.assertEqual(len(order.pending_line_items()), 4)
 
         # Should fail, as order is 'PENDING' not 'PLACED"
         self.assertEqual(order.status, PurchaseOrderStatus.PENDING)
diff --git a/InvenTree/order/views.py b/InvenTree/order/views.py
index c8ec42d3e7..98f3384ca9 100644
--- a/InvenTree/order/views.py
+++ b/InvenTree/order/views.py
@@ -30,7 +30,9 @@ from stock.models import StockItem, StockLocation
 from part.models import Part
 
 from common.models import InvenTreeSetting
+from common.forms import UploadFileForm, MatchFieldForm
 from common.views import FileManagementFormView
+from common.files import FileManager
 
 from . import forms as order_forms
 from part.views import PartPricing
@@ -572,7 +574,28 @@ class SalesOrderShip(AjaxUpdateView):
 class PurchaseOrderUpload(FileManagementFormView):
     ''' PurchaseOrder: Upload file, match to fields and parts (using multi-Step form) '''
 
+    class OrderFileManager(FileManager):
+        REQUIRED_HEADERS = [
+            'Quantity',
+        ]
+
+        ITEM_MATCH_HEADERS = [
+            'Manufacturer_MPN',
+            'Supplier_SKU',
+        ]
+
+        OPTIONAL_HEADERS = [
+            'Purchase_Price',
+            'Reference',
+            'Notes',
+        ]
+
     name = 'order'
+    form_list = [
+        ('upload', UploadFileForm),
+        ('fields', MatchFieldForm),
+        ('items', order_forms.OrderMatchItemForm),
+    ]
     form_steps_template = [
         'order/order_wizard/po_upload.html',
         'order/order_wizard/match_fields.html',
@@ -583,7 +606,6 @@ class PurchaseOrderUpload(FileManagementFormView):
         _("Match Fields"),
         _("Match Supplier Parts"),
     ]
-    # Form field name: PurchaseOrderLineItem field
     form_field_map = {
         'item_select': 'part',
         'quantity': 'quantity',
@@ -591,6 +613,7 @@ class PurchaseOrderUpload(FileManagementFormView):
         'reference': 'reference',
         'notes': 'notes',
     }
+    file_manager_class = OrderFileManager
 
     def get_order(self):
         """ Get order or return 404 """
@@ -598,6 +621,8 @@ class PurchaseOrderUpload(FileManagementFormView):
         return get_object_or_404(PurchaseOrder, pk=self.kwargs['pk'])
 
     def get_context_data(self, form, **kwargs):
+        """ Handle context data for order """
+
         context = super().get_context_data(form=form, **kwargs)
 
         order = self.get_order()
@@ -708,26 +733,7 @@ class PurchaseOrderUpload(FileManagementFormView):
         """ Once all the data is in, process it to add PurchaseOrderLineItem instances to the order """
         
         order = self.get_order()
-
-        items = {}
-
-        for form_key, form_value in self.get_all_cleaned_data().items():
-            # Split key from row value
-            try:
-                (field, idx) = form_key.split('-')
-            except ValueError:
-                continue
-
-            if idx not in items:
-                # Insert into items
-                items.update({
-                    idx: {
-                        self.form_field_map[field]: form_value,
-                    }
-                })
-            else:
-                # Update items
-                items[idx][self.form_field_map[field]] = form_value
+        items = self.get_clean_items()
 
         # Create PurchaseOrderLineItem instances
         for purchase_order_item in items.values():
@@ -1004,6 +1010,15 @@ class OrderParts(AjaxView):
 
         return ctx
 
+    def get_data(self):
+        """ enrich respone json data """
+        data = super().get_data()
+        # if in selection-phase, add a button to update the prices
+        if getattr(self, 'form_step', 'select_parts') == 'select_parts':
+            data['buttons'] = [{'name': 'update_price', 'title': _('Update prices')}]  # set buttons
+            data['hideErrorMessage'] = '1'  # hide the error message
+        return data
+
     def get_suppliers(self):
         """ Calculates a list of suppliers which the user will need to create POs for.
         This is calculated AFTER the user finishes selecting the parts to order.
@@ -1238,9 +1253,10 @@ class OrderParts(AjaxView):
         valid = False
 
         if form_step == 'select_parts':
-            # No errors? Proceed to PO selection form
-            if part_errors is False:
+            # No errors? and the price-update button was not used to submit? Proceed to PO selection form
+            if part_errors is False and 'act-btn_update_price' not in request.POST:
                 self.ajax_template_name = 'order/order_wizard/select_pos.html'
+                self.form_step = 'select_purchase_orders'  # set step (important for get_data)
 
             else:
                 self.ajax_template_name = 'order/order_wizard/select_parts.html'
diff --git a/InvenTree/part/admin.py b/InvenTree/part/admin.py
index 3945b56d7c..2e434d928d 100644
--- a/InvenTree/part/admin.py
+++ b/InvenTree/part/admin.py
@@ -14,7 +14,7 @@ from .models import BomItem
 from .models import PartParameterTemplate, PartParameter
 from .models import PartCategoryParameterTemplate
 from .models import PartTestTemplate
-from .models import PartSellPriceBreak
+from .models import PartSellPriceBreak, PartInternalPriceBreak
 
 from stock.models import StockLocation
 from company.models import SupplierPart
@@ -111,6 +111,13 @@ class PartCategoryResource(ModelResource):
         PartCategory.objects.rebuild()
 
 
+class PartCategoryInline(admin.TabularInline):
+    """
+    Inline for PartCategory model
+    """
+    model = PartCategory
+
+
 class PartCategoryAdmin(ImportExportModelAdmin):
 
     resource_class = PartCategoryResource
@@ -119,6 +126,10 @@ class PartCategoryAdmin(ImportExportModelAdmin):
 
     search_fields = ('name', 'description')
 
+    inlines = [
+        PartCategoryInline,
+    ]
+
 
 class PartRelatedAdmin(admin.ModelAdmin):
     ''' Class to manage PartRelated objects '''
@@ -286,6 +297,14 @@ class PartSellPriceBreakAdmin(admin.ModelAdmin):
     list_display = ('part', 'quantity', 'price',)
 
 
+class PartInternalPriceBreakAdmin(admin.ModelAdmin):
+
+    class Meta:
+        model = PartInternalPriceBreak
+
+    list_display = ('part', 'quantity', 'price',)
+
+
 admin.site.register(Part, PartAdmin)
 admin.site.register(PartCategory, PartCategoryAdmin)
 admin.site.register(PartRelated, PartRelatedAdmin)
@@ -297,3 +316,4 @@ admin.site.register(PartParameter, ParameterAdmin)
 admin.site.register(PartCategoryParameterTemplate, PartCategoryParameterAdmin)
 admin.site.register(PartTestTemplate, PartTestTemplateAdmin)
 admin.site.register(PartSellPriceBreak, PartSellPriceBreakAdmin)
+admin.site.register(PartInternalPriceBreak, PartInternalPriceBreakAdmin)
diff --git a/InvenTree/part/api.py b/InvenTree/part/api.py
index 537b0f9e40..60cea121a7 100644
--- a/InvenTree/part/api.py
+++ b/InvenTree/part/api.py
@@ -25,7 +25,7 @@ from django.urls import reverse
 from .models import Part, PartCategory, BomItem
 from .models import PartParameter, PartParameterTemplate
 from .models import PartAttachment, PartTestTemplate
-from .models import PartSellPriceBreak
+from .models import PartSellPriceBreak, PartInternalPriceBreak
 from .models import PartCategoryParameterTemplate
 
 from common.models import InvenTreeSetting
@@ -194,6 +194,24 @@ class PartSalePriceList(generics.ListCreateAPIView):
     ]
 
 
+class PartInternalPriceList(generics.ListCreateAPIView):
+    """
+    API endpoint for list view of PartInternalPriceBreak model
+    """
+
+    queryset = PartInternalPriceBreak.objects.all()
+    serializer_class = part_serializers.PartInternalPriceSerializer
+    permission_required = 'roles.sales_order.show'
+
+    filter_backends = [
+        DjangoFilterBackend
+    ]
+
+    filter_fields = [
+        'part',
+    ]
+
+
 class PartAttachmentList(generics.ListCreateAPIView, AttachmentMixin):
     """
     API endpoint for listing (and creating) a PartAttachment (file upload).
@@ -688,6 +706,7 @@ class PartList(generics.ListCreateAPIView):
         'creation_date',
         'IPN',
         'in_stock',
+        'category',
     ]
 
     # Default ordering
@@ -1017,6 +1036,11 @@ part_api_urls = [
         url(r'^.*$', PartSalePriceList.as_view(), name='api-part-sale-price-list'),
     ])),
 
+    # Base URL for part internal pricing
+    url(r'^internal-price/', include([
+        url(r'^.*$', PartInternalPriceList.as_view(), name='api-part-internal-price-list'),
+    ])),
+
     # Base URL for PartParameter API endpoints
     url(r'^parameter/', include([
         url(r'^template/$', PartParameterTemplateList.as_view(), name='api-part-param-template-list'),
diff --git a/InvenTree/part/apps.py b/InvenTree/part/apps.py
index 1b233bccac..0c57e2c1ab 100644
--- a/InvenTree/part/apps.py
+++ b/InvenTree/part/apps.py
@@ -39,7 +39,8 @@ class PartConfig(AppConfig):
         logger.debug("InvenTree: Checking Part image thumbnails")
 
         try:
-            for part in Part.objects.all():
+            # Only check parts which have images
+            for part in Part.objects.exclude(image=None):
                 if part.image:
                     url = part.image.thumbnail.name
                     loc = os.path.join(settings.MEDIA_ROOT, url)
@@ -50,8 +51,7 @@ class PartConfig(AppConfig):
                             part.image.render_variations(replace=False)
                         except FileNotFoundError:
                             logger.warning(f"Image file '{part.image}' missing")
-                            part.image = None
-                            part.save()
+                            pass
                         except UnidentifiedImageError:
                             logger.warning(f"Image file '{part.image}' is invalid")
         except (OperationalError, ProgrammingError):
diff --git a/InvenTree/part/fixtures/part.yaml b/InvenTree/part/fixtures/part.yaml
index 508a1577bb..3c24690efc 100644
--- a/InvenTree/part/fixtures/part.yaml
+++ b/InvenTree/part/fixtures/part.yaml
@@ -6,7 +6,7 @@
     name: 'M2x4 LPHS'
     description: 'M2x4 low profile head screw'
     category: 8
-    link: www.acme.com/parts/m2x4lphs
+    link: http://www.acme.com/parts/m2x4lphs
     tree_id: 0
     purchaseable: True
     level: 0
@@ -56,6 +56,7 @@
   fields:
     name: 'C_22N_0805'
     description: '22nF capacitor in 0805 package'
+    purchaseable: true
     category: 3
     tree_id: 0
     level: 0
diff --git a/InvenTree/part/fixtures/part_pricebreaks.yaml b/InvenTree/part/fixtures/part_pricebreaks.yaml
new file mode 100644
index 0000000000..0fd14c84df
--- /dev/null
+++ b/InvenTree/part/fixtures/part_pricebreaks.yaml
@@ -0,0 +1,51 @@
+# Sell price breaks for parts
+
+# Price breaks for R_2K2_0805
+
+- model: part.partsellpricebreak
+  pk: 1
+  fields:
+    part: 3
+    quantity: 1
+    price: 0.15
+
+- model: part.partsellpricebreak
+  pk: 2
+  fields:
+    part: 3
+    quantity: 10
+    price: 0.10
+
+
+# Internal price breaks for parts
+
+# Internal Price breaks for R_2K2_0805
+
+- model: part.partinternalpricebreak
+  pk: 1
+  fields:
+    part: 3
+    quantity: 1
+    price: 0.08
+
+- model: part.partinternalpricebreak
+  pk: 2
+  fields:
+    part: 3
+    quantity: 10
+    price: 0.05
+
+# Internal Price breaks for C_22N_0805
+- model: part.partinternalpricebreak
+  pk: 3
+  fields:
+    part: 5
+    quantity: 1
+    price: 1
+
+- model: part.partinternalpricebreak
+  pk: 4
+  fields:
+    part: 5
+    quantity: 24
+    price: 0.5
diff --git a/InvenTree/part/forms.py b/InvenTree/part/forms.py
index 95de4961f9..ec799bcf8d 100644
--- a/InvenTree/part/forms.py
+++ b/InvenTree/part/forms.py
@@ -20,7 +20,7 @@ from .models import BomItem
 from .models import PartParameterTemplate, PartParameter
 from .models import PartCategoryParameterTemplate
 from .models import PartTestTemplate
-from .models import PartSellPriceBreak
+from .models import PartSellPriceBreak, PartInternalPriceBreak
 
 
 class PartModelChoiceField(forms.ModelChoiceField):
@@ -394,3 +394,19 @@ class EditPartSalePriceBreakForm(HelperForm):
             'quantity',
             'price',
         ]
+
+
+class EditPartInternalPriceBreakForm(HelperForm):
+    """
+    Form for creating / editing a internal price for a part
+    """
+
+    quantity = RoundingDecimalFormField(max_digits=10, decimal_places=5, label=_('Quantity'))
+
+    class Meta:
+        model = PartInternalPriceBreak
+        fields = [
+            'part',
+            'quantity',
+            'price',
+        ]
diff --git a/InvenTree/part/migrations/0056_auto_20201110_1125.py b/InvenTree/part/migrations/0056_auto_20201110_1125.py
index b382dded71..862f9411c8 100644
--- a/InvenTree/part/migrations/0056_auto_20201110_1125.py
+++ b/InvenTree/part/migrations/0056_auto_20201110_1125.py
@@ -71,7 +71,8 @@ def migrate_currencies(apps, schema_editor):
 
         count += 1
 
-    print(f"Updated {count} SupplierPriceBreak rows")
+    if count > 0:
+        print(f"Updated {count} SupplierPriceBreak rows")
 
 def reverse_currencies(apps, schema_editor):
     """
diff --git a/InvenTree/part/migrations/0067_partinternalpricebreak.py b/InvenTree/part/migrations/0067_partinternalpricebreak.py
new file mode 100644
index 0000000000..f1b16fe87c
--- /dev/null
+++ b/InvenTree/part/migrations/0067_partinternalpricebreak.py
@@ -0,0 +1,30 @@
+# Generated by Django 3.2 on 2021-06-05 14:13
+
+import InvenTree.fields
+import django.core.validators
+from django.db import migrations, models
+import django.db.models.deletion
+import djmoney.models.fields
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('part', '0066_bomitem_allow_variants'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='PartInternalPriceBreak',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('quantity', InvenTree.fields.RoundingDecimalField(decimal_places=5, default=1, help_text='Price break quantity', max_digits=15, validators=[django.core.validators.MinValueValidator(1)], verbose_name='Quantity')),
+                ('price_currency', djmoney.models.fields.CurrencyField(choices=[('AUD', 'Australian Dollar'), ('CAD', 'Canadian Dollar'), ('EUR', 'Euro'), ('NZD', 'New Zealand Dollar'), ('GBP', 'Pound Sterling'), ('USD', 'US Dollar'), ('JPY', 'Yen')], default='USD', editable=False, max_length=3)),
+                ('price', djmoney.models.fields.MoneyField(decimal_places=4, default_currency='USD', help_text='Unit price at specified quantity', max_digits=19, null=True, verbose_name='Price')),
+                ('part', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='internalpricebreaks', to='part.part', verbose_name='Part')),
+            ],
+            options={
+                'unique_together': {('part', 'quantity')},
+            },
+        ),
+    ]
diff --git a/InvenTree/part/migrations/0068_part_unique_part.py b/InvenTree/part/migrations/0068_part_unique_part.py
new file mode 100644
index 0000000000..2e87fc7b2a
--- /dev/null
+++ b/InvenTree/part/migrations/0068_part_unique_part.py
@@ -0,0 +1,17 @@
+# Generated by Django 3.2.4 on 2021-06-21 23:10
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('part', '0067_partinternalpricebreak'),
+    ]
+
+    operations = [
+        migrations.AddConstraint(
+            model_name='part',
+            constraint=models.UniqueConstraint(fields=('name', 'IPN', 'revision'), name='unique_part'),
+        ),
+    ]
diff --git a/InvenTree/part/migrations/0069_auto_20210701_0509.py b/InvenTree/part/migrations/0069_auto_20210701_0509.py
new file mode 100644
index 0000000000..86d8d2d44c
--- /dev/null
+++ b/InvenTree/part/migrations/0069_auto_20210701_0509.py
@@ -0,0 +1,35 @@
+# Generated by Django 3.2.4 on 2021-07-01 05:09
+
+import InvenTree.fields
+from django.db import migrations
+import djmoney.models.fields
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('part', '0068_part_unique_part'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='partinternalpricebreak',
+            name='price',
+            field=InvenTree.fields.InvenTreeModelMoneyField(currency_choices=[], decimal_places=4, default_currency='', help_text='Unit price at specified quantity', max_digits=19, null=True, verbose_name='Price'),
+        ),
+        migrations.AlterField(
+            model_name='partinternalpricebreak',
+            name='price_currency',
+            field=djmoney.models.fields.CurrencyField(choices=[], default='', editable=False, max_length=3),
+        ),
+        migrations.AlterField(
+            model_name='partsellpricebreak',
+            name='price',
+            field=InvenTree.fields.InvenTreeModelMoneyField(currency_choices=[], decimal_places=4, default_currency='', help_text='Unit price at specified quantity', max_digits=19, null=True, verbose_name='Price'),
+        ),
+        migrations.AlterField(
+            model_name='partsellpricebreak',
+            name='price_currency',
+            field=djmoney.models.fields.CurrencyField(choices=[], default='', editable=False, max_length=3),
+        ),
+    ]
diff --git a/InvenTree/part/models.py b/InvenTree/part/models.py
index 7b9038fecb..9f4da436df 100644
--- a/InvenTree/part/models.py
+++ b/InvenTree/part/models.py
@@ -39,7 +39,7 @@ from InvenTree import helpers
 from InvenTree import validators
 from InvenTree.models import InvenTreeTree, InvenTreeAttachment
 from InvenTree.fields import InvenTreeURLField
-from InvenTree.helpers import decimal2string, normalize
+from InvenTree.helpers import decimal2string, normalize, decimal2money
 
 from InvenTree.status_codes import BuildStatus, PurchaseOrderStatus, SalesOrderStatus
 
@@ -321,6 +321,9 @@ class Part(MPTTModel):
         verbose_name = _("Part")
         verbose_name_plural = _("Parts")
         ordering = ['name', ]
+        constraints = [
+            UniqueConstraint(fields=['name', 'IPN', 'revision'], name='unique_part')
+        ]
 
     class MPTTMeta:
         # For legacy reasons the 'variant_of' field is used to indicate the MPTT parent
@@ -379,8 +382,7 @@ class Part(MPTTModel):
                     logger.info(f"Deleting unused image file '{previous.image}'")
                     previous.image.delete(save=False)
 
-        self.clean()
-        self.validate_unique()
+        self.full_clean()
 
         super().save(*args, **kwargs)
 
@@ -643,23 +645,6 @@ class Part(MPTTModel):
                     'IPN': _('Duplicate IPN not allowed in part settings'),
                 })
 
-        # Part name uniqueness should be case insensitive
-        try:
-            parts = Part.objects.exclude(id=self.id).filter(
-                name__iexact=self.name,
-                IPN__iexact=self.IPN,
-                revision__iexact=self.revision)
-
-            if parts.exists():
-                msg = _("Part must be unique for name, IPN and revision")
-                raise ValidationError({
-                    "name": msg,
-                    "IPN": msg,
-                    "revision": msg,
-                })
-        except Part.DoesNotExist:
-            pass
-
     def clean(self):
         """
         Perform cleaning operations for the Part model
@@ -1494,16 +1479,17 @@ class Part(MPTTModel):
 
         return True
 
-    def get_price_info(self, quantity=1, buy=True, bom=True):
+    def get_price_info(self, quantity=1, buy=True, bom=True, internal=False):
         """ Return a simplified pricing string for this part
 
         Args:
             quantity: Number of units to calculate price for
             buy: Include supplier pricing (default = True)
             bom: Include BOM pricing (default = True)
+            internal: Include internal pricing (default = False)
         """
 
-        price_range = self.get_price_range(quantity, buy, bom)
+        price_range = self.get_price_range(quantity, buy, bom, internal)
 
         if price_range is None:
             return None
@@ -1544,7 +1530,7 @@ class Part(MPTTModel):
 
         return (min_price, max_price)
 
-    def get_bom_price_range(self, quantity=1):
+    def get_bom_price_range(self, quantity=1, internal=False):
         """ Return the price range of the BOM for this part.
         Adds the minimum price for all components in the BOM.
 
@@ -1561,7 +1547,7 @@ class Part(MPTTModel):
                 print("Warning: Item contains itself in BOM")
                 continue
 
-            prices = item.sub_part.get_price_range(quantity * item.quantity)
+            prices = item.sub_part.get_price_range(quantity * item.quantity, internal=internal)
 
             if prices is None:
                 continue
@@ -1585,19 +1571,25 @@ class Part(MPTTModel):
 
         return (min_price, max_price)
 
-    def get_price_range(self, quantity=1, buy=True, bom=True):
+    def get_price_range(self, quantity=1, buy=True, bom=True, internal=False):
 
         """ Return the price range for this part. This price can be either:
 
         - Supplier price (if purchased from suppliers)
         - BOM price (if built from other parts)
+        - Internal price (if set for the part)
 
         Returns:
-            Minimum of the supplier price or BOM price. If no pricing available, returns None
+            Minimum of the supplier, BOM or internal price. If no pricing available, returns None
         """
 
+        # only get internal price if set and should be used
+        if internal and self.has_internal_price_breaks:
+            internal_price = self.get_internal_price(quantity)
+            return internal_price, internal_price
+
         buy_price_range = self.get_supplier_price_range(quantity) if buy else None
-        bom_price_range = self.get_bom_price_range(quantity) if bom else None
+        bom_price_range = self.get_bom_price_range(quantity, internal=internal) if bom else None
 
         if buy_price_range is None:
             return bom_price_range
@@ -1649,6 +1641,22 @@ class Part(MPTTModel):
             price=price
         )
 
+    def get_internal_price(self, quantity, moq=True, multiples=True, currency=None):
+        return common.models.get_price(self, quantity, moq, multiples, currency, break_name='internal_price_breaks')
+
+    @property
+    def has_internal_price_breaks(self):
+        return self.internal_price_breaks.count() > 0
+
+    @property
+    def internal_price_breaks(self):
+        """ Return the associated price breaks in the correct order """
+        return self.internalpricebreaks.order_by('quantity').all()
+
+    @property
+    def internal_unit_pricing(self):
+        return self.get_internal_price(1)
+
     @transaction.atomic
     def copy_bom_from(self, other, clear=True, **kwargs):
         """
@@ -1983,6 +1991,21 @@ class PartSellPriceBreak(common.models.PriceBreak):
         unique_together = ('part', 'quantity')
 
 
+class PartInternalPriceBreak(common.models.PriceBreak):
+    """
+    Represents a price break for internally selling this part
+    """
+
+    part = models.ForeignKey(
+        Part, on_delete=models.CASCADE,
+        related_name='internalpricebreaks',
+        verbose_name=_('Part')
+    )
+
+    class Meta:
+        unique_together = ('part', 'quantity')
+
+
 class PartStar(models.Model):
     """ A PartStar object creates a relationship between a User and a Part.
 
@@ -2391,7 +2414,7 @@ class BomItem(models.Model):
         return "{n} x {child} to make {parent}".format(
             parent=self.part.full_name,
             child=self.sub_part.full_name,
-            n=helpers.decimal2string(self.quantity))
+            n=decimal2string(self.quantity))
 
     def available_stock(self):
         """
@@ -2475,10 +2498,12 @@ class BomItem(models.Model):
         return required
 
     @property
-    def price_range(self):
+    def price_range(self, internal=False):
         """ Return the price-range for this BOM item. """
 
-        prange = self.sub_part.get_price_range(self.quantity)
+        # get internal price setting
+        use_internal = common.models.InvenTreeSetting.get_setting('PART_BOM_USE_INTERNAL_PRICE', False)
+        prange = self.sub_part.get_price_range(self.quantity, internal=use_internal and internal)
 
         if prange is None:
             return prange
@@ -2486,11 +2511,11 @@ class BomItem(models.Model):
         pmin, pmax = prange
 
         if pmin == pmax:
-            return decimal2string(pmin)
+            return decimal2money(pmin)
 
         # Convert to better string representation
-        pmin = decimal2string(pmin)
-        pmax = decimal2string(pmax)
+        pmin = decimal2money(pmin)
+        pmax = decimal2money(pmax)
 
         return "{pmin} to {pmax}".format(pmin=pmin, pmax=pmax)
 
diff --git a/InvenTree/part/serializers.py b/InvenTree/part/serializers.py
index d03a37c6dc..2da2d05d3b 100644
--- a/InvenTree/part/serializers.py
+++ b/InvenTree/part/serializers.py
@@ -7,17 +7,21 @@ from decimal import Decimal
 from django.db import models
 from django.db.models import Q
 from django.db.models.functions import Coalesce
-from InvenTree.serializers import (InvenTreeAttachmentSerializerField,
-                                   InvenTreeModelSerializer)
-from InvenTree.status_codes import BuildStatus, PurchaseOrderStatus
+
 from rest_framework import serializers
 from sql_util.utils import SubqueryCount, SubquerySum
 from djmoney.contrib.django_rest_framework import MoneyField
+
+from InvenTree.serializers import (InvenTreeAttachmentSerializerField,
+                                   InvenTreeImageSerializerField,
+                                   InvenTreeModelSerializer)
+from InvenTree.status_codes import BuildStatus, PurchaseOrderStatus
 from stock.models import StockItem
 
 from .models import (BomItem, Part, PartAttachment, PartCategory,
                      PartParameter, PartParameterTemplate, PartSellPriceBreak,
-                     PartStar, PartTestTemplate, PartCategoryParameterTemplate)
+                     PartStar, PartTestTemplate, PartCategoryParameterTemplate,
+                     PartInternalPriceBreak)
 
 
 class CategorySerializer(InvenTreeModelSerializer):
@@ -100,6 +104,25 @@ class PartSalePriceSerializer(InvenTreeModelSerializer):
         ]
 
 
+class PartInternalPriceSerializer(InvenTreeModelSerializer):
+    """
+    Serializer for internal prices for Part model.
+    """
+
+    quantity = serializers.FloatField()
+
+    price = serializers.CharField()
+
+    class Meta:
+        model = PartInternalPriceBreak
+        fields = [
+            'pk',
+            'part',
+            'quantity',
+            'price',
+        ]
+
+
 class PartThumbSerializer(serializers.Serializer):
     """
     Serializer for the 'image' field of the Part model.
@@ -280,7 +303,7 @@ class PartSerializer(InvenTreeModelSerializer):
     stock_item_count = serializers.IntegerField(read_only=True)
     suppliers = serializers.IntegerField(read_only=True)
 
-    image = serializers.CharField(source='get_image_url', read_only=True)
+    image = InvenTreeImageSerializerField(required=False, allow_null=True)
     thumbnail = serializers.CharField(source='get_thumbnail_url', read_only=True)
     starred = serializers.SerializerMethodField()
 
@@ -354,7 +377,7 @@ class PartStarSerializer(InvenTreeModelSerializer):
 class BomItemSerializer(InvenTreeModelSerializer):
     """ Serializer for BomItem object """
 
-    # price_range = serializers.CharField(read_only=True)
+    price_range = serializers.CharField(read_only=True)
 
     quantity = serializers.FloatField()
 
@@ -469,7 +492,7 @@ class BomItemSerializer(InvenTreeModelSerializer):
             'reference',
             'sub_part',
             'sub_part_detail',
-            # 'price_range',
+            'price_range',
             'validated',
         ]
 
diff --git a/InvenTree/part/templates/part/allocation.html b/InvenTree/part/templates/part/allocation.html
index 803df3906d..e78456ea3a 100644
--- a/InvenTree/part/templates/part/allocation.html
+++ b/InvenTree/part/templates/part/allocation.html
@@ -8,52 +8,43 @@
 {% endblock %}
 
 {% block heading %}
-{% trans "Part Stock Allocations" %}
+{% trans "Build Order Allocations" %}
 {% endblock %}
 
 {% block details %}
-<table class='table table-striped table-condensed' id='build-table'>
-<tr>
-    <th>{% trans "Order" %}</th>
-    <th>{% trans "Stock Item" %}</th>
-    <th>{% trans "Quantity" %}</th>
-</tr>
-{% for allocation in part.build_order_allocations %}
-<tr>
-    <td><a href="{% url 'build-detail' allocation.build.id %}">{% trans "Build Order" %}: {{ allocation.build }}</a></td>
-    <td><a href="{% url 'stock-item-detail' allocation.stock_item.id %}">{% trans "Stock Item" %}: {{ allocation.stock_item }}</a></td>
-    <td>{% decimal allocation.quantity %}</td>
-</tr>
-{% endfor %}
-{% for allocation in part.sales_order_allocations %}
-<tr>
-    <td><a href="{% url 'so-detail' allocation.line.order.id %}">{% trans "Sales Order" %}: {{ allocation.line.order }}</a></td>
-    <td><a href="{% url 'stock-item-detail' allocation.item.id %}">{% trans "Stock Item" %}: {{ allocation.item }}</a></td>
-    <td>{% decimal allocation.quantity %}</td>
-</tr>
-{% endfor %}
-</table>
+
+<table class='table table-striped table-condensed' id='build-order-table'></table>
 
 {% endblock %}
 
+{% block pre_content_panel %}
+
+<div class='panel panel-default panel-inventree'>
+    <div class='panel-heading'>
+        <h4>{% trans "Sales  Order Allocations" %}</h4>
+    </div>
+    
+    <div class='panel-content'>
+        <table class='table table-striped table-condensed' id='sales-order-table'></table>
+    </div>
+</div>
+
+{% endblock %}
+
+
 {% block js_ready %}
 {{ block.super }}
 
-    $("#build-table").inventreeTable({
-        columns: [
-            {
-                title: '{% trans "Order" %}',
-                sortable: true,
-            },
-            {
-                title: '{% trans "Stock Item" %}',
-                sortable: true,
-            },
-            {
-                title: '{% trans "Quantity" %}',
-                sortable: true,
-            }
-        ]
+    loadSalesOrderAllocationTable("#sales-order-table", {
+        params: {
+            part: {{ part.id }},
+        }
+    });
+
+    loadBuildOrderAllocationTable("#build-order-table", {
+        params: {
+            part: {{ part.id }},
+        }
     });
 
 {% endblock %}
diff --git a/InvenTree/part/templates/part/category.html b/InvenTree/part/templates/part/category.html
index 44cbeac99f..ef250d4c89 100644
--- a/InvenTree/part/templates/part/category.html
+++ b/InvenTree/part/templates/part/category.html
@@ -8,6 +8,15 @@
 
 {% block content %}
 
+{% if messages %}
+  {% for message in messages %}
+    <div class='{{ message.tags }}'>
+        {{ message|safe }}
+    </div>
+  {% endfor %}
+{% endif %}
+
+
 <div class='panel panel-default panel-inventree'>
     <div class='row'>
         <div class='col-sm-6'>
diff --git a/InvenTree/part/templates/part/category_navbar.html b/InvenTree/part/templates/part/category_navbar.html
index d84b49a311..bd61300531 100644
--- a/InvenTree/part/templates/part/category_navbar.html
+++ b/InvenTree/part/templates/part/category_navbar.html
@@ -1,4 +1,7 @@
 {% load i18n %}
+{% load inventree_extras %}
+
+{% settings_value 'PART_SHOW_IMPORT' as show_import %}
 
 <ul class='list-group'>
 
@@ -30,6 +33,15 @@
         </a>
     </li>
 
+    {% if show_import and user.is_staff and roles.part.add %}
+    <li class='list-group-item {% if tab == "import" %}active{% endif %}' title='{% trans "Import Parts" %}'>
+        <a href='{% url "part-import" %}'>
+            <span class='fas fa-file-upload sidebar-icon'></span>
+            {% trans "Import Parts" %}
+        </a>
+    </li>
+    {% endif %}
+
     {% if category %}
     <li class='list-group-item {% if tab == "parameters" %}active{% endif %}' title='{% trans "Parameters" %}'>
         <a href='{% url "category-parametric" category.id %}'>
diff --git a/InvenTree/part/templates/part/import_wizard/ajax_match_fields.html b/InvenTree/part/templates/part/import_wizard/ajax_match_fields.html
new file mode 100644
index 0000000000..293ddbc4d8
--- /dev/null
+++ b/InvenTree/part/templates/part/import_wizard/ajax_match_fields.html
@@ -0,0 +1,89 @@
+{% extends "part/import_wizard/ajax_part_upload.html" %}
+{% load inventree_extras %}
+{% load i18n %}
+{% load static %}
+
+{% block form_alert %}
+{% if missing_columns and missing_columns|length > 0 %}
+<div class='alert alert-danger alert-block' role='alert'>
+    {% trans "Missing selections for the following required columns" %}:
+    <br>
+    <ul>
+        {% for col in missing_columns %}
+        <li>{{ col }}</li>
+        {% endfor %}
+    </ul>
+</div>
+{% endif %}
+{% if duplicates and duplicates|length > 0 %}
+<div class='alert alert-danger alert-block' role='alert'>
+    {% trans "Duplicate selections found, see below. Fix them then retry submitting." %}
+</div>
+{% endif %}
+{% endblock form_alert %}
+
+{% block form_content %}
+    <thead>
+        <tr>
+            <th>{% trans "File Fields" %}</th>
+            <th></th>
+            {% for col in form %}
+            <th>
+                <div>
+                    <input type='hidden' name='col_name_{{ forloop.counter0 }}' value='{{ col.name }}'/>
+                    {{ col.name }}
+                    <button class='btn btn-default btn-remove' onClick='removeColFromBomWizard()' id='del_col_{{ forloop.counter0 }}' style='display: inline; float: right;' title='{% trans "Remove column" %}'>
+                        <span col_id='{{ forloop.counter0 }}' class='fas fa-trash-alt icon-red'></span>
+                    </button>
+                </div>
+            </th>
+            {% endfor %}
+        </tr>
+    </thead>
+    <tbody>
+        <tr>
+            <td>{% trans "Match Fields" %}</td>
+            <td></td>
+            {% for col in form %}
+            <td>
+                {{ col }}
+                {% for duplicate in duplicates %}
+                    {% if duplicate == col.value %}
+                    <div class='alert alert-danger alert-block text-center' role='alert' style='padding:2px; margin-top:6px; margin-bottom:2px'>
+                        <b>{% trans "Duplicate selection" %}</b>
+                    </div>
+                    {% endif %}
+                {% endfor %}
+            </td>
+            {% endfor %}
+        </tr>
+        {% for row in rows %}
+        {% with forloop.counter as row_index %}
+        <tr>
+            <td style='width: 32px;'>
+                <button class='btn btn-default btn-remove' onClick='removeRowFromBomWizard()' id='del_row_{{ row_index }}' style='display: inline; float: left;' title='{% trans "Remove row" %}'>
+                    <span row_id='{{ row_index }}' class='fas fa-trash-alt icon-red'></span>
+                </button>
+            </td>
+            <td style='text-align: left;'>{{ row_index }}</td>
+            {% for item in row.data %}
+            <td>
+                <input type='hidden' name='row_{{ row_index }}_col_{{ forloop.counter0 }}' value='{{ item }}'/>
+                {{ item }}
+            </td>
+            {% endfor %}
+        </tr>
+        {% endwith %}
+        {% endfor %}
+    </tbody>
+{% endblock form_content %}
+
+{% block js_ready %}
+{{ block.super }}
+
+$('.fieldselect').select2({
+    width: '100%',
+    matcher: partialMatcher,
+});
+
+{% endblock %}
\ No newline at end of file
diff --git a/InvenTree/part/templates/part/import_wizard/ajax_match_references.html b/InvenTree/part/templates/part/import_wizard/ajax_match_references.html
new file mode 100644
index 0000000000..e57fb066d3
--- /dev/null
+++ b/InvenTree/part/templates/part/import_wizard/ajax_match_references.html
@@ -0,0 +1,84 @@
+{% extends "part/import_wizard/ajax_part_upload.html" %}
+{% load inventree_extras %}
+{% load i18n %}
+{% load static %}
+{% load crispy_forms_tags %}
+
+{% block form_alert %}
+{% if form.errors %}
+{% endif %}
+{% if form_errors %}
+<div class='alert alert-danger alert-block' role='alert'>
+    {% trans "Errors exist in the submitted data" %}
+</div>
+{% endif %}
+{% endblock form_alert %}
+
+{% block form_content %}
+        <thead>
+            <tr>
+                <th></th>
+                <th>{% trans "Row" %}</th>
+                {% for col in columns %}
+
+                <th>
+                    <input type='hidden' name='col_name_{{ forloop.counter0 }}' value='{{ col.name }}'/>
+                    <input type='hidden' name='col_guess_{{ forloop.counter0 }}' value='{{ col.guess }}'/>
+                    {% if col.guess %}
+                    {{ col.guess }}
+                    {% else %}
+                    {{ col.name }}
+                    {% endif %}
+                </th>
+                {% endfor %}
+            </tr>
+        </thead>
+        <tbody>
+             <tr></tr> {% comment %} Dummy row for javascript del_row method {% endcomment %}
+            {% for row in rows %}
+            <tr {% if row.errors %} style='background: #ffeaea;'{% endif %} part-select='#select_part_{{ row.index }}'>
+                <td>
+                    <button class='btn btn-default btn-remove' onClick='removeRowFromBomWizard()' id='del_row_{{ row.index }}' style='display: inline; float: right;' title='{% trans "Remove row" %}'>
+                            <span row_id='{{ row.index }}' class='fas fa-trash-alt icon-red'></span>
+                    </button>
+                </td>
+                <td>
+                {% add row.index 1 %}
+                </td>
+                {% for item in row.data %}
+                <td>
+                    {% if item.column.guess %}
+                        {% with row_name=item.column.guess|lower %}
+                        {% for field in form.visible_fields %}
+                            {% if field.name == row|keyvalue:row_name %}
+                                {{ field|as_crispy_field }}
+                            {% endif %}
+                        {% endfor %}
+                        {% endwith %}
+                    {% else %}
+                        {{ item.cell }}
+                    {% endif %}
+                    <input type='hidden' name='row_{{ row.index }}_col_{{ forloop.counter0 }}' value='{{ item.cell }}'/>
+                </td>
+                {% endfor %}
+            </tr>
+            {% endfor %}
+        </tbody>
+{% endblock form_content %}
+
+{% block form_buttons_bottom %}
+{% endblock form_buttons_bottom %}
+
+{% block js_ready %}
+{{ block.super }}
+
+$('.bomselect').select2({
+    dropdownAutoWidth: true,
+    matcher: partialMatcher,
+});
+
+$('.currencyselect').select2({
+    dropdownAutoWidth: true,
+});
+
+{% endblock %}
\ No newline at end of file
diff --git a/InvenTree/part/templates/part/import_wizard/ajax_part_upload.html b/InvenTree/part/templates/part/import_wizard/ajax_part_upload.html
new file mode 100644
index 0000000000..f2a1e5c844
--- /dev/null
+++ b/InvenTree/part/templates/part/import_wizard/ajax_part_upload.html
@@ -0,0 +1,33 @@
+{% extends "modal_form.html" %}
+
+{% load inventree_extras %}
+{% load i18n %}
+
+{% block form %}
+
+{% if roles.part.change %}
+
+    <p>{% blocktrans with step=wizard.steps.step1 count=wizard.steps.count %}Step {{step}} of {{count}}{% endblocktrans %}
+    {% if description %}- {{ description }}{% endif %}</p>
+
+    {% block form_alert %}
+    {% endblock form_alert %}
+
+    <form action="" method="post" class='js-modal-form' enctype="multipart/form-data">
+    {% csrf_token %}
+    {% load crispy_forms_tags %}
+
+    <table class='table table-striped' style='margin-top: 12px; margin-bottom: 0px'>
+    {{ wizard.management_form }}
+    {% block form_content %}
+    {% crispy wizard.form %}
+    {% endblock form_content %}
+    </table>
+
+{% else %}
+    <div class='alert alert-danger alert-block' role='alert'>
+        {% trans "Unsuffitient privileges." %}
+    </div>
+{% endif %}
+</div>
+{% endblock %}
\ No newline at end of file
diff --git a/InvenTree/part/templates/part/import_wizard/match_fields.html b/InvenTree/part/templates/part/import_wizard/match_fields.html
new file mode 100644
index 0000000000..ba709bc639
--- /dev/null
+++ b/InvenTree/part/templates/part/import_wizard/match_fields.html
@@ -0,0 +1,99 @@
+{% extends "part/import_wizard/part_upload.html" %}
+{% load inventree_extras %}
+{% load i18n %}
+{% load static %}
+
+{% block form_alert %}
+{% if missing_columns and missing_columns|length > 0 %}
+<div class='alert alert-danger alert-block' role='alert'>
+    {% trans "Missing selections for the following required columns" %}:
+    <br>
+    <ul>
+        {% for col in missing_columns %}
+        <li>{{ col }}</li>
+        {% endfor %}
+    </ul>
+</div>
+{% endif %}
+{% if duplicates and duplicates|length > 0 %}
+<div class='alert alert-danger alert-block' role='alert'>
+    {% trans "Duplicate selections found, see below. Fix them then retry submitting." %}
+</div>
+{% endif %}
+{% endblock form_alert %}
+
+{% block form_buttons_top %}
+    {% if wizard.steps.prev %}
+    <button name="wizard_goto_step" type="submit" value="{{ wizard.steps.prev }}" class="save btn btn-default">{% trans "Previous Step" %}</button>
+    {% endif %}
+    <button type="submit" class="save btn btn-default">{% trans "Submit Selections" %}</button>
+{% endblock form_buttons_top %}
+
+{% block form_content %}
+    <thead>
+        <tr>
+            <th>{% trans "File Fields" %}</th>
+            <th></th>
+            {% for col in form %}
+            <th>
+                <div>
+                    <input type='hidden' name='col_name_{{ forloop.counter0 }}' value='{{ col.name }}'/>
+                    {{ col.name }}
+                    <button class='btn btn-default btn-remove' onClick='removeColFromBomWizard()' id='del_col_{{ forloop.counter0 }}' style='display: inline; float: right;' title='{% trans "Remove column" %}'>
+                        <span col_id='{{ forloop.counter0 }}' class='fas fa-trash-alt icon-red'></span>
+                    </button>
+                </div>
+            </th>
+            {% endfor %}
+        </tr>
+    </thead>
+    <tbody>
+        <tr>
+            <td>{% trans "Match Fields" %}</td>
+            <td></td>
+            {% for col in form %}
+            <td>
+                {{ col }}
+                {% for duplicate in duplicates %}
+                    {% if duplicate == col.value %}
+                    <div class='alert alert-danger alert-block text-center' role='alert' style='padding:2px; margin-top:6px; margin-bottom:2px'>
+                        <b>{% trans "Duplicate selection" %}</b>
+                    </div>
+                    {% endif %}
+                {% endfor %}
+            </td>
+            {% endfor %}
+        </tr>
+        {% for row in rows %}
+        {% with forloop.counter as row_index %}
+        <tr>
+            <td style='width: 32px;'>
+                <button class='btn btn-default btn-remove' onClick='removeRowFromBomWizard()' id='del_row_{{ row_index }}' style='display: inline; float: left;' title='{% trans "Remove row" %}'>
+                    <span row_id='{{ row_index }}' class='fas fa-trash-alt icon-red'></span>
+                </button>
+            </td>
+            <td style='text-align: left;'>{{ row_index }}</td>
+            {% for item in row.data %}
+            <td>
+                <input type='hidden' name='row_{{ row_index }}_col_{{ forloop.counter0 }}' value='{{ item }}'/>
+                {{ item }}
+            </td>
+            {% endfor %}
+        </tr>
+        {% endwith %}
+        {% endfor %}
+    </tbody>
+{% endblock form_content %}
+
+{% block form_buttons_bottom %}
+{% endblock form_buttons_bottom %}
+
+{% block js_ready %}
+{{ block.super }}
+
+$('.fieldselect').select2({
+    width: '100%',
+    matcher: partialMatcher,
+});
+
+{% endblock %}
\ No newline at end of file
diff --git a/InvenTree/part/templates/part/import_wizard/match_references.html b/InvenTree/part/templates/part/import_wizard/match_references.html
new file mode 100644
index 0000000000..99b9ccd191
--- /dev/null
+++ b/InvenTree/part/templates/part/import_wizard/match_references.html
@@ -0,0 +1,91 @@
+{% extends "part/import_wizard/part_upload.html" %}
+{% load inventree_extras %}
+{% load i18n %}
+{% load static %}
+{% load crispy_forms_tags %}
+
+{% block form_alert %}
+{% if form.errors %}
+{% endif %}
+{% if form_errors %}
+<div class='alert alert-danger alert-block' role='alert'>
+    {% trans "Errors exist in the submitted data" %}
+</div>
+{% endif %}
+{% endblock form_alert %}
+
+{% block form_buttons_top %}
+    {% if wizard.steps.prev %}
+    <button name="wizard_goto_step" type="submit" value="{{ wizard.steps.prev }}" class="save btn btn-default">{% trans "Previous Step" %}</button>
+    {% endif %}
+    <button type="submit" class="save btn btn-default">{% trans "Submit Selections" %}</button>
+{% endblock form_buttons_top %}
+
+{% block form_content %}
+        <thead>
+            <tr>
+                <th></th>
+                <th>{% trans "Row" %}</th>
+                {% for col in columns %}
+
+                <th>
+                    <input type='hidden' name='col_name_{{ forloop.counter0 }}' value='{{ col.name }}'/>
+                    <input type='hidden' name='col_guess_{{ forloop.counter0 }}' value='{{ col.guess }}'/>
+                    {% if col.guess %}
+                    {{ col.guess }}
+                    {% else %}
+                    {{ col.name }}
+                    {% endif %}
+                </th>
+                {% endfor %}
+            </tr>
+        </thead>
+        <tbody>
+             <tr></tr> {% comment %} Dummy row for javascript del_row method {% endcomment %}
+            {% for row in rows %}
+            <tr {% if row.errors %} style='background: #ffeaea;'{% endif %} part-select='#select_part_{{ row.index }}'>
+                <td>
+                    <button class='btn btn-default btn-remove' onClick='removeRowFromBomWizard()' id='del_row_{{ row.index }}' style='display: inline; float: right;' title='{% trans "Remove row" %}'>
+                            <span row_id='{{ row.index }}' class='fas fa-trash-alt icon-red'></span>
+                    </button>
+                </td>
+                <td>
+                {% add row.index 1 %}
+                </td>
+                {% for item in row.data %}
+                <td>
+                    {% if item.column.guess %}
+                        {% with row_name=item.column.guess|lower %}
+                        {% for field in form.visible_fields %}
+                            {% if field.name == row|keyvalue:row_name %}
+                                {{ field|as_crispy_field }}
+                            {% endif %}
+                        {% endfor %}
+                        {% endwith %}
+                    {% else %}
+                        {{ item.cell }}
+                    {% endif %}
+                    <input type='hidden' name='row_{{ row.index }}_col_{{ forloop.counter0 }}' value='{{ item.cell }}'/>
+                </td>
+                {% endfor %}
+            </tr>
+            {% endfor %}
+        </tbody>
+{% endblock form_content %}
+
+{% block form_buttons_bottom %}
+{% endblock form_buttons_bottom %}
+
+{% block js_ready %}
+{{ block.super }}
+
+$('.bomselect').select2({
+    dropdownAutoWidth: true,
+    matcher: partialMatcher,
+});
+
+$('.currencyselect').select2({
+    dropdownAutoWidth: true,
+});
+
+{% endblock %}
\ No newline at end of file
diff --git a/InvenTree/part/templates/part/import_wizard/part_upload.html b/InvenTree/part/templates/part/import_wizard/part_upload.html
new file mode 100644
index 0000000000..87809603bb
--- /dev/null
+++ b/InvenTree/part/templates/part/import_wizard/part_upload.html
@@ -0,0 +1,61 @@
+{% extends "part/category.html" %}
+{% load inventree_extras %}
+{% load i18n %}
+{% load static %}
+
+{% block menubar %}
+{% include 'part/category_navbar.html' with tab='import' %}
+{% endblock %}
+
+{% block category_content %}
+    <div class='panel panel-default panel-inventree'>
+        <div class='panel-heading'>
+            <h4>
+                {% trans "Import Parts from File" %}
+                {{ wizard.form.media }}
+            </h4>
+        </div>
+        <div class='panel-content'>   
+    {% if roles.part.change %}
+
+        <p>{% blocktrans with step=wizard.steps.step1 count=wizard.steps.count %}Step {{step}} of {{count}}{% endblocktrans %}
+        {% if description %}- {{ description }}{% endif %}</p>
+
+        {% block form_alert %}
+        {% endblock form_alert %}
+
+        <form action="" method="post" class='js-modal-form' enctype="multipart/form-data">
+        {% csrf_token %}
+        {% load crispy_forms_tags %}
+
+        {% block form_buttons_top %}
+        {% endblock form_buttons_top %}
+
+        <table class='table table-striped' style='margin-top: 12px; margin-bottom: 0px'>
+        {{ wizard.management_form }}
+        {% block form_content %}
+        {% crispy wizard.form %}
+        {% endblock form_content %}
+        </table>
+
+        {% block form_buttons_bottom %}
+        {% if wizard.steps.prev %}
+        <button name="wizard_goto_step" type="submit" value="{{ wizard.steps.prev }}" class="save btn btn-default">{% trans "Previous Step" %}</button>
+        {% endif %}
+        <button type="submit" class="save btn btn-default">{% trans "Upload File" %}</button>
+        </form>
+        {% endblock form_buttons_bottom %}
+
+    {% else %}
+        <div class='alert alert-danger alert-block' role='alert'>
+            {% trans "Unsuffitient privileges." %}
+        </div>
+    {% endif %}
+    </div>
+</div>
+{% endblock %}
+
+{% block js_ready %}
+{{ block.super }}
+
+{% endblock %}
\ No newline at end of file
diff --git a/InvenTree/part/templates/part/internal_prices.html b/InvenTree/part/templates/part/internal_prices.html
new file mode 100644
index 0000000000..2f54f3bb64
--- /dev/null
+++ b/InvenTree/part/templates/part/internal_prices.html
@@ -0,0 +1,122 @@
+{% extends "part/part_base.html" %}
+{% load static %}
+{% load i18n %}
+{% load inventree_extras %}
+
+{% block menubar %}
+{% include 'part/navbar.html' with tab='internal-prices' %}
+{% endblock %}
+
+{% block heading %}
+{% trans "Internal Price Information" %}
+{% endblock %}
+
+{% block details %}
+{% settings_value "PART_INTERNAL_PRICE" as show_internal_price %}
+{% if show_internal_price and roles.sales_order.view %}
+<div id='internal-price-break-toolbar' class='btn-group'>
+    <button class='btn btn-primary' id='new-internal-price-break' type='button'>
+        <span class='fas fa-plus-circle'></span> {% trans "Add Internal Price Break" %}
+    </button>
+</div>
+
+<table class='table table-striped table-condensed' id='internal-price-break-table' data-toolbar='#internal-price-break-toolbar'>
+</table>
+
+{% else %}
+<div class='container-fluid'>
+    <h3>{% trans "Permission Denied" %}</h3>
+
+    <div class='alert alert-danger alert-block'>
+        {% trans "You do not have permission to view this page." %}
+    </div>
+</div>
+{% endif %}
+{% endblock %}
+
+{% block js_ready %}
+{{ block.super }}
+
+{% settings_value "PART_INTERNAL_PRICE" as show_internal_price %}
+{% if show_internal_price and roles.sales_order.view %}
+function reloadPriceBreaks() {
+    $("#internal-price-break-table").bootstrapTable("refresh");
+}
+
+$('#new-internal-price-break').click(function() {
+    launchModalForm("{% url 'internal-price-break-create' %}",
+        {
+            success: reloadPriceBreaks,
+            data: {
+                part: {{ part.id }},
+            }
+        }
+    );
+});
+
+$('#internal-price-break-table').inventreeTable({
+    name: 'internalprice',
+    formatNoMatches: function() { return "{% trans 'No internal price break information found' %}"; },
+    queryParams: {
+        part: {{ part.id }},
+    },
+    url: "{% url 'api-part-internal-price-list' %}",
+    onPostBody: function() {
+        var table = $('#internal-price-break-table');
+
+        table.find('.button-internal-price-break-delete').click(function() {
+            var pk = $(this).attr('pk');
+
+            launchModalForm(
+                `/part/internal-price/${pk}/delete/`,
+                {
+                    success: reloadPriceBreaks
+                }
+            );
+        });
+
+        table.find('.button-internal-price-break-edit').click(function() {
+            var pk = $(this).attr('pk');
+
+            launchModalForm(
+                `/part/internal-price/${pk}/edit/`,
+                {
+                    success: reloadPriceBreaks
+                }
+            );
+        });
+    },
+    columns: [
+        {
+            field: 'pk',
+            title: 'ID',
+            visible: false,
+            switchable: false,
+        },
+        {
+            field: 'quantity',
+            title: '{% trans "Quantity" %}',
+            sortable: true,
+        },
+        {
+            field: 'price',
+            title: '{% trans "Price" %}',
+            sortable: true,
+            formatter: function(value, row, index) {
+                var html = value;
+
+                html += `<div class='btn-group float-right' role='group'>`
+
+                html += makeIconButton('fa-edit icon-blue', 'button-internal-price-break-edit', row.pk, '{% trans "Edit internal price break" %}');
+                html += makeIconButton('fa-trash-alt icon-red', 'button-internal-price-break-delete', row.pk, '{% trans "Delete internal price break" %}');
+
+                html += `</div>`;
+
+                return html;
+            }
+        },
+    ]
+})
+
+{% endif %}
+{% endblock %}
\ No newline at end of file
diff --git a/InvenTree/part/templates/part/navbar.html b/InvenTree/part/templates/part/navbar.html
index d1ed7e3d21..1fae6aaec2 100644
--- a/InvenTree/part/templates/part/navbar.html
+++ b/InvenTree/part/templates/part/navbar.html
@@ -2,6 +2,9 @@
 {% load static %}
 {% load inventree_extras %}
 
+{% settings_value "PART_INTERNAL_PRICE" as show_internal_price %}
+{% settings_value 'PART_SHOW_RELATED' as show_related %}
+
 <ul class='list-group'>
     <li class='list-group-item'>
         <a href='#' id='part-menu-toggle'>
@@ -94,7 +97,13 @@
         </a>
     </li>
     {% endif %}
-    {% if part.salable and roles.sales_order.view %}
+    {% if show_internal_price and roles.sales_order.view %}
+    <li class='list-group-item {% if tab == "internal-prices" %}active{% endif %}' title='{% trans "Internal Price Information" %}'>
+        <a href='{% url "part-internal-prices" part.id %}'>
+            <span class='menu-tab-icon fas fa-dollar-sign' style='width: 20px;'></span>
+            {% trans "Internal Price" %}
+        </a>
+    </li>
     <li class='list-group-item {% if tab == "sales-prices" %}active{% endif %}' title='{% trans "Sales Price Information" %}'>
         <a href='{% url "part-sale-prices" part.id %}'>
             <span class='menu-tab-icon fas fa-dollar-sign sidebar-icon'></span>
@@ -116,12 +125,14 @@
         </a>
     </li>
     {% endif %}
+    {% if show_related %}
     <li class='list-group-item {% if tab == "related" %}active{% endif %}' title='{% trans "Related Parts" %}'>
         <a href='{% url "part-related" part.id %}'>
             <span class='menu-tab-icon fas fa-random sidebar-icon'></span>
             {% trans "Related Parts" %}
         </a>
     </li>
+    {% endif %}
     <li class='list-group-item {% if tab == "attachments" %}active{% endif %}' title='{% trans "Attachments" %}'>
         <a href='{% url "part-attachments" part.id %}'>
             <span class='menu-tab-icon fas fa-paperclip sidebar-icon'></span>
diff --git a/InvenTree/part/templates/part/order_prices.html b/InvenTree/part/templates/part/order_prices.html
index e165ee9c74..c8f0ea29a0 100644
--- a/InvenTree/part/templates/part/order_prices.html
+++ b/InvenTree/part/templates/part/order_prices.html
@@ -14,8 +14,19 @@
 
 {% block details %}
 {% default_currency as currency %}
+{% settings_value "PART_INTERNAL_PRICE" as show_internal_price %}
 
-{% crispy form %}
+
+<form method="post" class="form-horizontal">
+    {% csrf_token %}
+    <div class="row">
+        <div class="col-sm-9">{{ form|crispy }}</div>
+        <div class="col-sm-3">
+            <input type="submit" value="{% trans 'Calculate' %}" class="btn btn-primary btn-block">
+        </div>
+    </div>
+</form>
+<hr>
 
 <div class="row"><div class="col col-md-6">
 <h4>{% trans "Pricing ranges" %}</h4>
@@ -77,6 +88,21 @@
     {% endif %}
 {% endif %}
 
+{% if show_internal_price and roles.sales_order.view %}
+{% if total_internal_part_price %}
+    <tr>
+        <td><b>{% trans 'Internal Price' %}</b></td>
+        <td>{% trans 'Unit Cost' %}</td>
+        <td colspan='2'>{% include "price.html" with price=unit_internal_part_price %}</td>
+    </tr>
+    <tr>
+        <td></td>
+        <td>{% trans 'Total Cost' %}</td>
+        <td colspan='2'>{% include "price.html" with price=total_internal_part_price %}</td>
+    </tr>
+{% endif %}
+{% endif %}
+
 {% if total_part_price %}
     <tr>
         <td><b>{% trans 'Sale Price' %}</b></td>
@@ -110,9 +136,9 @@
 
 {% if price_history %}
     <hr>
-    <h4>{% trans 'Stock Pricing' %}<i class="fas fa-info-circle" title="Shows the prices of stock for this part
-the part single price shown is the current price for that supplier part"></i></h4>
-    {% if price_history|length > 1 %}
+    <h4>{% trans 'Stock Pricing' %}<i class="fas fa-info-circle" title="Shows the purchase prices of stock for this part.
+The part single price is the current purchase price for that supplier part."></i></h4>
+    {% if price_history|length > 0 %}
         <div style="max-width: 99%; min-height: 300px">
             <canvas id="StockPriceChart"></canvas>
         </div>
@@ -157,7 +183,8 @@ the part single price shown is the current price for that supplier part"></i></h
                             {% for line in price_history %}{{ line.price_diff|stringformat:".2f" }},{% endfor %}
                         ],
                         borderWidth: 1,
-                        type: 'line'
+                        type: 'line',
+                        hidden: true,
                     },
                     {
                         label: '{% blocktrans %}Part Single Price - {{currency}}{% endblocktrans %}',
@@ -168,7 +195,8 @@ the part single price shown is the current price for that supplier part"></i></h
                             {% for line in price_history %}{{ line.price_part|stringformat:".2f" }},{% endfor %}
                         ],
                         borderWidth: 1,
-                        type: 'line'
+                        type: 'line',
+                        hidden: true,
                     },
                     {% endif %}
                     {
@@ -187,18 +215,18 @@ the part single price shown is the current price for that supplier part"></i></h
             var bomdata = {
                 labels: [{% for line in bom_parts %}'{{ line.name }}',{% endfor %}],
                 datasets:  [
-                {% if bom_pie_min %}
+                {
+                  label: 'Price',
+                  data: [{% for line in bom_parts %}{{ line.min_price }},{% endfor %}],
+                  backgroundColor: bom_colors,
+                },
+                {% if bom_pie_max %}
                 {
                     label: 'Max Price',
                     data: [{% for line in bom_parts %}{{ line.max_price }},{% endfor %}],
                     backgroundColor: bom_colors,
                   },
                 {% endif %}
-                {
-                  label: 'Price',
-                  data: [{% for line in bom_parts %}{% if bom_pie_min %}{{ line.min_price }}{% else %}{{ line.price }}{% endif%},{% endfor %}],
-                  backgroundColor: bom_colors,
-                }
               ]
             };
             var BomChart = loadBomChart(document.getElementById('BomChart'), bomdata)
diff --git a/InvenTree/part/templates/part/part_base.html b/InvenTree/part/templates/part/part_base.html
index 2e1cb2e71f..b486e2c589 100644
--- a/InvenTree/part/templates/part/part_base.html
+++ b/InvenTree/part/templates/part/part_base.html
@@ -195,8 +195,13 @@
 
 </div>
 
+{% block pre_content_panel %}
+
+{% endblock %}
+
 <div class='panel panel-default panel-inventree'>
 
+
     <div class='panel-heading'>
         <h4>
             {% block heading %}
@@ -210,7 +215,11 @@
         <!-- Specific part details go here... -->
         {% endblock %}
     </div>
+
 </div>
+{% block post_content_panel %}
+
+{% endblock %}
 
 {% endblock %}
 
@@ -230,11 +239,19 @@
 
     enableDragAndDrop(
         '#part-thumb',
-        "{% url 'part-image-upload' part.id %}",
+        "{% url 'api-part-detail' part.id %}",
         {
             label: 'image',
+            method: 'PATCH',
             success: function(data, status, xhr) {
-                location.reload();
+
+                // If image / thumbnail data present, live update
+                if (data.image) {
+                    $('#part-image').attr('src', data.image);
+                } else {
+                    // Otherwise, reload the page
+                    location.reload();
+                }
             }
         }
     );
diff --git a/InvenTree/part/templates/part/part_pricing.html b/InvenTree/part/templates/part/part_pricing.html
index e035a77162..ce55124bd9 100644
--- a/InvenTree/part/templates/part/part_pricing.html
+++ b/InvenTree/part/templates/part/part_pricing.html
@@ -3,7 +3,10 @@
 {% load i18n inventree_extras %}
 
 {% block pre_form_content %}
+
 {% default_currency as currency %}
+{% settings_value "PART_INTERNAL_PRICE" as show_internal_price %}
+
 <table class='table table-striped table-condensed table-price-two'>
     <tr>
         <td><b>{% trans 'Part' %}</b></td>
@@ -74,6 +77,22 @@
     </table>
 {% endif %}
 
+{% if show_internal_price and roles.sales_order.view %}
+{% if total_internal_part_price %}
+    <h4>{% trans 'Internal Price' %}</h4>
+    <table class='table table-striped table-condensed table-price-two'>
+        <tr>
+            <td><b>{% trans 'Unit Cost' %}</b></td>
+            <td>{% include "price.html" with price=unit_internal_part_price %}</td>
+        </tr>
+        <tr>
+            <td><b>{% trans 'Total Cost' %}</b></td>
+            <td>{% include "price.html" with price=total_internal_part_price %}</td>
+        </tr>
+    </table>
+{% endif %}
+{% endif %}
+
 {% if total_part_price %}
     <h4>{% trans 'Sale Price' %}</h4>
     <table class='table table-striped table-condensed table-price-two'>
diff --git a/InvenTree/part/templatetags/inventree_extras.py b/InvenTree/part/templatetags/inventree_extras.py
index 1c40dae30e..38689df26b 100644
--- a/InvenTree/part/templatetags/inventree_extras.py
+++ b/InvenTree/part/templatetags/inventree_extras.py
@@ -5,6 +5,7 @@ over and above the built-in Django tags.
 """
 
 import os
+import sys
 
 from django.utils.translation import ugettext_lazy as _
 from django.conf import settings as djangosettings
@@ -114,6 +115,14 @@ def inventree_title(*args, **kwargs):
     return version.inventreeInstanceTitle()
 
 
+@register.simple_tag()
+def python_version(*args, **kwargs):
+    """
+    Return the current python version
+    """
+    return sys.version.split(' ')[0]
+
+
 @register.simple_tag()
 def inventree_version(*args, **kwargs):
     """ Return InvenTree version string """
@@ -208,6 +217,29 @@ def get_color_theme_css(username):
     return inventree_css_static_url
 
 
+@register.filter
+def keyvalue(dict, key):
+    """
+    access to key of supplied dict
+
+    usage:
+    {% mydict|keyvalue:mykey %}
+    """
+    return dict[key]
+
+
+@register.simple_tag()
+def call_method(obj, method_name, *args):
+    """
+    enables calling model methods / functions from templates with arguments
+    
+    usage:
+    {% call_method model_object 'fnc_name' argument1 %}
+    """
+    method = getattr(obj, method_name)
+    return method(*args)
+
+
 @register.simple_tag()
 def authorized_owners(group):
     """ Return authorized owners """
diff --git a/InvenTree/part/test_api.py b/InvenTree/part/test_api.py
index 0f5f59d3a3..4922ed4e04 100644
--- a/InvenTree/part/test_api.py
+++ b/InvenTree/part/test_api.py
@@ -1,14 +1,20 @@
-from rest_framework import status
+# -*- coding: utf-8 -*-
+
+import PIL
 
 from django.urls import reverse
 
-from part.models import Part
-from stock.models import StockItem
-from company.models import Company
+from rest_framework import status
+from rest_framework.test import APIClient
 
 from InvenTree.api_tester import InvenTreeAPITestCase
 from InvenTree.status_codes import StockStatus
 
+from part.models import Part, PartCategory
+from stock.models import StockItem
+from company.models import Company
+from common.models import InvenTreeSetting
+
 
 class PartAPITest(InvenTreeAPITestCase):
     """
@@ -230,6 +236,18 @@ class PartAPITest(InvenTreeAPITestCase):
         response = self.client.get(url, data={'part': 10004})
         self.assertEqual(len(response.data), 7)
 
+        # Try to post a new object (missing description)
+        response = self.client.post(
+            url,
+            data={
+                'part': 10000,
+                'test_name': 'My very first test',
+                'required': False,
+            }
+        )
+
+        self.assertEqual(response.status_code, 400)
+
         # Try to post a new object (should succeed)
         response = self.client.post(
             url,
@@ -237,6 +255,7 @@ class PartAPITest(InvenTreeAPITestCase):
                 'part': 10000,
                 'test_name': 'New Test',
                 'required': True,
+                'description': 'a test description'
             },
             format='json',
         )
@@ -248,7 +267,8 @@ class PartAPITest(InvenTreeAPITestCase):
             url,
             data={
                 'part': 10004,
-                'test_name': "   newtest"
+                'test_name': "   newtest",
+                'description': 'dafsdf',
             },
             format='json',
         )
@@ -292,6 +312,297 @@ class PartAPITest(InvenTreeAPITestCase):
 
             self.assertEqual(len(data['results']), n)
 
+    def test_default_values(self):
+        """
+        Tests for 'default' values:
+
+        Ensure that unspecified fields revert to "default" values
+        (as specified in the model field definition)
+        """
+
+        url = reverse('api-part-list')
+
+        response = self.client.post(url, {
+            'name': 'all defaults',
+            'description': 'my test part',
+            'category': 1,
+        })
+
+        data = response.data
+
+        # Check that the un-specified fields have used correct default values
+        self.assertTrue(data['active'])
+        self.assertFalse(data['virtual'])
+
+        # By default, parts are not purchaseable
+        self.assertFalse(data['purchaseable'])
+
+        # Set the default 'purchaseable' status to True
+        InvenTreeSetting.set_setting(
+            'PART_PURCHASEABLE',
+            True,
+            self.user
+        )
+
+        response = self.client.post(url, {
+            'name': 'all defaults',
+            'description': 'my test part 2',
+            'category': 1,
+        })
+
+        # Part should now be purchaseable by default
+        self.assertTrue(response.data['purchaseable'])
+
+        # "default" values should not be used if the value is specified
+        response = self.client.post(url, {
+            'name': 'all defaults',
+            'description': 'my test part 2',
+            'category': 1,
+            'active': False,
+            'purchaseable': False,
+        })
+
+        self.assertFalse(response.data['active'])
+        self.assertFalse(response.data['purchaseable'])
+
+
+class PartDetailTests(InvenTreeAPITestCase):
+    """
+    Test that we can create / edit / delete Part objects via the API
+    """
+
+    fixtures = [
+        'category',
+        'part',
+        'location',
+        'bom',
+        'test_templates',
+    ]
+
+    roles = [
+        'part.change',
+        'part.add',
+        'part.delete',
+        'part_category.change',
+        'part_category.add',
+    ]
+
+    def setUp(self):
+        super().setUp()
+
+    def test_part_operations(self):
+        n = Part.objects.count()
+
+        # Create a part
+        response = self.client.post(
+            reverse('api-part-list'),
+            {
+                'name': 'my test api part',
+                'description': 'a part created with the API',
+                'category': 1,
+            }
+        )
+
+        self.assertEqual(response.status_code, 201)
+
+        pk = response.data['pk']
+
+        # Check that a new part has been added
+        self.assertEqual(Part.objects.count(), n + 1)
+
+        part = Part.objects.get(pk=pk)
+
+        self.assertEqual(part.name, 'my test api part')
+
+        # Edit the part
+        url = reverse('api-part-detail', kwargs={'pk': pk})
+
+        # Let's change the name of the part
+
+        response = self.client.patch(url, {
+            'name': 'a new better name',
+        })
+
+        self.assertEqual(response.status_code, 200)
+        self.assertEqual(response.data['pk'], pk)
+        self.assertEqual(response.data['name'], 'a new better name')
+
+        part = Part.objects.get(pk=pk)
+
+        # Name has been altered
+        self.assertEqual(part.name, 'a new better name')
+
+        # Part count should not have changed
+        self.assertEqual(Part.objects.count(), n + 1)
+
+        # Now, try to set the name to the *same* value
+        # 2021-06-22 this test is to check that the "duplicate part" checks don't do strange things
+        response = self.client.patch(url, {
+            'name': 'a new better name',
+        })
+
+        self.assertEqual(response.status_code, 200)
+
+        # Try to remove the part
+        response = self.client.delete(url)
+
+        # As the part is 'active' we cannot delete it
+        self.assertEqual(response.status_code, 405)
+
+        # So, let's make it not active
+        response = self.patch(url, {'active': False}, expected_code=200)
+
+        response = self.client.delete(url)
+        self.assertEqual(response.status_code, 204)
+
+        # Part count should have reduced
+        self.assertEqual(Part.objects.count(), n)
+
+    def test_duplicates(self):
+        """
+        Check that trying to create 'duplicate' parts results in errors
+        """
+
+        # Create a part
+        response = self.client.post(reverse('api-part-list'), {
+            'name': 'part',
+            'description': 'description',
+            'IPN': 'IPN-123',
+            'category': 1,
+            'revision': 'A',
+        })
+
+        self.assertEqual(response.status_code, 201)
+
+        n = Part.objects.count()
+
+        # Check that we cannot create a duplicate in a different category
+        response = self.client.post(reverse('api-part-list'), {
+            'name': 'part',
+            'description': 'description',
+            'IPN': 'IPN-123',
+            'category': 2,
+            'revision': 'A',
+        })
+
+        self.assertEqual(response.status_code, 400)
+
+        # Check that only 1 matching part exists
+        parts = Part.objects.filter(
+            name='part',
+            description='description',
+            IPN='IPN-123'
+        )
+
+        self.assertEqual(parts.count(), 1)
+
+        # A new part should *not* have been created
+        self.assertEqual(Part.objects.count(), n)
+
+        # But a different 'revision' *can* be created
+        response = self.client.post(reverse('api-part-list'), {
+            'name': 'part',
+            'description': 'description',
+            'IPN': 'IPN-123',
+            'category': 2,
+            'revision': 'B',
+        })
+
+        self.assertEqual(response.status_code, 201)
+        self.assertEqual(Part.objects.count(), n + 1)
+
+        # Now, check that we cannot *change* an existing part to conflict
+        pk = response.data['pk']
+
+        url = reverse('api-part-detail', kwargs={'pk': pk})
+
+        # Attempt to alter the revision code
+        response = self.client.patch(
+            url,
+            {
+                'revision': 'A',
+            },
+            format='json',
+        )
+
+        self.assertEqual(response.status_code, 400)
+
+        # But we *can* change it to a unique revision code
+        response = self.client.patch(
+            url,
+            {
+                'revision': 'C',
+            }
+        )
+
+        self.assertEqual(response.status_code, 200)
+
+    def test_image_upload(self):
+        """
+        Test that we can upload an image to the part API
+        """
+
+        self.assignRole('part.add')
+
+        # Create a new part
+        response = self.client.post(
+            reverse('api-part-list'),
+            {
+                'name': 'imagine',
+                'description': 'All the people',
+                'category': 1,
+            },
+            expected_code=201
+        )
+
+        pk = response.data['pk']
+
+        url = reverse('api-part-detail', kwargs={'pk': pk})
+
+        p = Part.objects.get(pk=pk)
+
+        # Part should not have an image!
+        with self.assertRaises(ValueError):
+            print(p.image.file)
+
+        # Create a custom APIClient for file uploads
+        # Ref: https://stackoverflow.com/questions/40453947/how-to-generate-a-file-upload-test-request-with-django-rest-frameworks-apireq
+        upload_client = APIClient()
+        upload_client.force_authenticate(user=self.user)
+
+        # Try to upload a non-image file
+        with open('dummy_image.txt', 'w') as dummy_image:
+            dummy_image.write('hello world')
+
+        with open('dummy_image.txt', 'rb') as dummy_image:
+            response = upload_client.patch(
+                url,
+                {
+                    'image': dummy_image,
+                },
+                format='multipart',
+            )
+
+            self.assertEqual(response.status_code, 400)
+
+        # Now try to upload a valid image file
+        img = PIL.Image.new('RGB', (128, 128), color='red')
+        img.save('dummy_image.jpg')
+
+        with open('dummy_image.jpg', 'rb') as dummy_image:
+            response = upload_client.patch(
+                url,
+                {
+                    'image': dummy_image,
+                },
+                format='multipart',
+            )
+
+            self.assertEqual(response.status_code, 200)
+
+        # And now check that the image has been set
+        p = Part.objects.get(pk=pk)
+
 
 class PartAPIAggregationTest(InvenTreeAPITestCase):
     """
@@ -319,6 +630,8 @@ class PartAPIAggregationTest(InvenTreeAPITestCase):
         # Add a new part
         self.part = Part.objects.create(
             name='Banana',
+            description='This is a banana',
+            category=PartCategory.objects.get(pk=1),
         )
 
         # Create some stock items associated with the part
diff --git a/InvenTree/part/test_bom_item.py b/InvenTree/part/test_bom_item.py
index 7e553be73a..66897b28fc 100644
--- a/InvenTree/part/test_bom_item.py
+++ b/InvenTree/part/test_bom_item.py
@@ -1,5 +1,6 @@
 from django.test import TestCase
 import django.core.exceptions as django_exceptions
+from decimal import Decimal
 
 from .models import Part, BomItem
 
@@ -11,11 +12,16 @@ class BomItemTest(TestCase):
         'part',
         'location',
         'bom',
+        'company',
+        'supplier_part',
+        'part_pricebreaks',
+        'price_breaks',
     ]
 
     def setUp(self):
         self.bob = Part.objects.get(id=100)
         self.orphan = Part.objects.get(name='Orphan')
+        self.r1 = Part.objects.get(name='R_2K2_0805')
 
     def test_str(self):
         b = BomItem.objects.get(id=1)
@@ -111,3 +117,10 @@ class BomItemTest(TestCase):
         item.validate_hash()
 
         self.assertNotEqual(h1, h2)
+
+    def test_pricing(self):
+        self.bob.get_price(1)
+        self.assertEqual(self.bob.get_bom_price_range(1, internal=True), (Decimal(84.5), Decimal(89.5)))
+        # remove internal price for R_2K2_0805
+        self.r1.internal_price_breaks.delete()
+        self.assertEqual(self.bob.get_bom_price_range(1, internal=True), (Decimal(82.5), Decimal(87.5)))
diff --git a/InvenTree/part/test_param.py b/InvenTree/part/test_param.py
index 4e6556e63d..85eea7ee57 100644
--- a/InvenTree/part/test_param.py
+++ b/InvenTree/part/test_param.py
@@ -23,7 +23,7 @@ class TestParams(TestCase):
     def test_str(self):
 
         t1 = PartParameterTemplate.objects.get(pk=1)
-        self.assertEquals(str(t1), 'Length (mm)')
+        self.assertEqual(str(t1), 'Length (mm)')
 
         p1 = PartParameter.objects.get(pk=1)
         self.assertEqual(str(p1), 'M2x4 LPHS : Length = 4mm')
diff --git a/InvenTree/part/test_part.py b/InvenTree/part/test_part.py
index cd8726ccf4..e30c80549f 100644
--- a/InvenTree/part/test_part.py
+++ b/InvenTree/part/test_part.py
@@ -11,7 +11,7 @@ from django.core.exceptions import ValidationError
 
 import os
 
-from .models import Part, PartTestTemplate
+from .models import Part, PartCategory, PartTestTemplate
 from .models import rename_part_image, match_part_names
 from .templatetags import inventree_extras
 
@@ -51,6 +51,7 @@ class PartTest(TestCase):
         'category',
         'part',
         'location',
+        'part_pricebreaks'
     ]
 
     def setUp(self):
@@ -77,6 +78,61 @@ class PartTest(TestCase):
         p = Part.objects.get(pk=100)
         self.assertEqual(str(p), "BOB | Bob | A2 - Can we build it?")
 
+    def test_duplicate(self):
+        """
+        Test that we cannot create a "duplicate" Part
+        """
+
+        n = Part.objects.count()
+
+        cat = PartCategory.objects.get(pk=1)
+
+        Part.objects.create(
+            category=cat,
+            name='part',
+            description='description',
+            IPN='IPN',
+            revision='A',
+        )
+
+        self.assertEqual(Part.objects.count(), n + 1)
+
+        part = Part(
+            category=cat,
+            name='part',
+            description='description',
+            IPN='IPN',
+            revision='A',
+        )
+
+        with self.assertRaises(ValidationError):
+            part.validate_unique()
+
+        try:
+            part.save()
+            self.assertTrue(False)
+        except:
+            pass
+
+        self.assertEqual(Part.objects.count(), n + 1)
+
+        # But we should be able to create a part with a different revision
+        part_2 = Part.objects.create(
+            category=cat,
+            name='part',
+            description='description',
+            IPN='IPN',
+            revision='B',
+        )
+
+        self.assertEqual(Part.objects.count(), n + 2)
+
+        # Now, check that we cannot *change* part_2 to conflict
+        part_2.revision = 'A'
+
+        with self.assertRaises(ValidationError):
+            part_2.validate_unique()
+
     def test_metadata(self):
         self.assertEqual(self.r1.name, 'R_2K2_0805')
         self.assertEqual(self.r1.get_absolute_url(), '/part/3/')
@@ -113,6 +169,22 @@ class PartTest(TestCase):
 
         self.assertTrue(len(matches) > 0)
 
+    def test_sell_pricing(self):
+        # check that the sell pricebreaks were loaded
+        self.assertTrue(self.r1.has_price_breaks)
+        self.assertEqual(self.r1.price_breaks.count(), 2)
+        # check that the sell pricebreaks work
+        self.assertEqual(float(self.r1.get_price(1)), 0.15)
+        self.assertEqual(float(self.r1.get_price(10)), 1.0)
+
+    def test_internal_pricing(self):
+        # check that the sell pricebreaks were loaded
+        self.assertTrue(self.r1.has_internal_price_breaks)
+        self.assertEqual(self.r1.internal_price_breaks.count(), 2)
+        # check that the sell pricebreaks work
+        self.assertEqual(float(self.r1.get_internal_price(1)), 0.08)
+        self.assertEqual(float(self.r1.get_internal_price(10)), 0.5)
+
 
 class TestTemplateTest(TestCase):
 
@@ -260,21 +332,24 @@ class PartSettingsTest(TestCase):
         """
 
         # Create a part
-        Part.objects.create(name='Hello', description='A thing', IPN='IPN123')
+        Part.objects.create(name='Hello', description='A thing', IPN='IPN123', revision='A')
 
         # Attempt to create a duplicate item (should fail)
         with self.assertRaises(ValidationError):
-            Part.objects.create(name='Hello', description='A thing', IPN='IPN123')
+            part = Part(name='Hello', description='A thing', IPN='IPN123', revision='A')
+            part.validate_unique()
 
         # Attempt to create item with duplicate IPN (should be allowed by default)
         Part.objects.create(name='Hello', description='A thing', IPN='IPN123', revision='B')
 
         # And attempt again with the same values (should fail)
         with self.assertRaises(ValidationError):
-            Part.objects.create(name='Hello', description='A thing', IPN='IPN123', revision='B')
+            part = Part(name='Hello', description='A thing', IPN='IPN123', revision='B')
+            part.validate_unique()
 
         # Now update the settings so duplicate IPN values are *not* allowed
         InvenTreeSetting.set_setting('PART_ALLOW_DUPLICATE_IPN', False, self.user)
 
         with self.assertRaises(ValidationError):
-            Part.objects.create(name='Hello', description='A thing', IPN='IPN123', revision='C')
+            part = Part(name='Hello', description='A thing', IPN='IPN123', revision='C')
+            part.full_clean()
diff --git a/InvenTree/part/urls.py b/InvenTree/part/urls.py
index e53ce54782..c35786e5d3 100644
--- a/InvenTree/part/urls.py
+++ b/InvenTree/part/urls.py
@@ -29,6 +29,12 @@ sale_price_break_urls = [
     url(r'^(?P<pk>\d+)/delete/', views.PartSalePriceBreakDelete.as_view(), name='sale-price-break-delete'),
 ]
 
+internal_price_break_urls = [
+    url(r'^new/', views.PartInternalPriceBreakCreate.as_view(), name='internal-price-break-create'),
+    url(r'^(?P<pk>\d+)/edit/', views.PartInternalPriceBreakEdit.as_view(), name='internal-price-break-edit'),
+    url(r'^(?P<pk>\d+)/delete/', views.PartInternalPriceBreakDelete.as_view(), name='internal-price-break-delete'),
+]
+
 part_parameter_urls = [
     url(r'^template/new/', views.PartParameterTemplateCreate.as_view(), name='part-param-template-create'),
     url(r'^template/(?P<pk>\d+)/edit/', views.PartParameterTemplateEdit.as_view(), name='part-param-template-edit'),
@@ -65,6 +71,7 @@ part_detail_urls = [
     url(r'^orders/?', views.PartDetail.as_view(template_name='part/orders.html'), name='part-orders'),
     url(r'^sales-orders/', views.PartDetail.as_view(template_name='part/sales_orders.html'), name='part-sales-orders'),
     url(r'^sale-prices/', views.PartDetail.as_view(template_name='part/sale_prices.html'), name='part-sale-prices'),
+    url(r'^internal-prices/', views.PartDetail.as_view(template_name='part/internal_prices.html'), name='part-internal-prices'),
     url(r'^tests/', views.PartDetail.as_view(template_name='part/part_tests.html'), name='part-test-templates'),
     url(r'^track/?', views.PartDetail.as_view(template_name='part/track.html'), name='part-track'),
     url(r'^related-parts/?', views.PartDetail.as_view(template_name='part/related.html'), name='part-related'),
@@ -121,6 +128,10 @@ part_urls = [
     # Create a new part
     url(r'^new/?', views.PartCreate.as_view(), name='part-create'),
 
+    # Upload a part
+    url(r'^import/', views.PartImport.as_view(), name='part-import'),
+    url(r'^import-api/', views.PartImportAjax.as_view(), name='api-part-import'),
+
     # Create a new BOM item
     url(r'^bom/new/?', views.BomItemCreate.as_view(), name='bom-item-create'),
 
@@ -145,6 +156,9 @@ part_urls = [
     # Part price breaks
     url(r'^sale-price/', include(sale_price_break_urls)),
 
+    # Part internal price breaks
+    url(r'^internal-price/', include(internal_price_break_urls)),
+
     # Part test templates
     url(r'^test-template/', include([
         url(r'^new/', views.PartTestTemplateCreate.as_view(), name='part-test-template-create'),
diff --git a/InvenTree/part/views.py b/InvenTree/part/views.py
index b4f33c9382..294f89223e 100644
--- a/InvenTree/part/views.py
+++ b/InvenTree/part/views.py
@@ -17,6 +17,7 @@ from django.views.generic import DetailView, ListView, FormView, UpdateView
 from django.forms.models import model_to_dict
 from django.forms import HiddenInput, CheckboxInput
 from django.conf import settings
+from django.contrib import messages
 
 from moneyed import CURRENCIES
 from djmoney.contrib.exchange.models import convert_money
@@ -36,10 +37,14 @@ from .models import PartCategoryParameterTemplate
 from .models import BomItem
 from .models import match_part_names
 from .models import PartTestTemplate
-from .models import PartSellPriceBreak
+from .models import PartSellPriceBreak, PartInternalPriceBreak
 
 from common.models import InvenTreeSetting
 from company.models import SupplierPart
+from common.files import FileManager
+from common.views import FileManagementFormView, FileManagementAjaxView
+
+from stock.models import StockLocation
 
 import common.settings as inventree_settings
 
@@ -719,6 +724,168 @@ class PartCreate(AjaxCreateView):
         return initials
 
 
+class PartImport(FileManagementFormView):
+    ''' Part: Upload file, match to fields and import parts(using multi-Step form) '''
+    permission_required = 'part.add'
+
+    class PartFileManager(FileManager):
+        REQUIRED_HEADERS = [
+            'Name',
+            'Description',
+        ]
+
+        OPTIONAL_MATCH_HEADERS = [
+            'Category',
+            'default_location',
+            'default_supplier',
+        ]
+
+        OPTIONAL_HEADERS = [
+            'Keywords',
+            'IPN',
+            'Revision',
+            'Link',
+            'default_expiry',
+            'minimum_stock',
+            'Units',
+            'Notes',
+        ]
+
+    name = 'part'
+    form_steps_template = [
+        'part/import_wizard/part_upload.html',
+        'part/import_wizard/match_fields.html',
+        'part/import_wizard/match_references.html',
+    ]
+    form_steps_description = [
+        _("Upload File"),
+        _("Match Fields"),
+        _("Match References"),
+    ]
+
+    form_field_map = {
+        'name': 'name',
+        'description': 'description',
+        'keywords': 'keywords',
+        'ipn': 'ipn',
+        'revision': 'revision',
+        'link': 'link',
+        'default_expiry': 'default_expiry',
+        'minimum_stock': 'minimum_stock',
+        'units': 'units',
+        'notes': 'notes',
+        'category': 'category',
+        'default_location': 'default_location',
+        'default_supplier': 'default_supplier',
+    }
+    file_manager_class = PartFileManager
+
+    def get_field_selection(self):
+        """ Fill the form fields for step 3 """
+        # fetch available elements
+        self.allowed_items = {}
+        self.matches = {}
+
+        self.allowed_items['Category'] = PartCategory.objects.all()
+        self.matches['Category'] = ['name__contains']
+        self.allowed_items['default_location'] = StockLocation.objects.all()
+        self.matches['default_location'] = ['name__contains']
+        self.allowed_items['default_supplier'] = SupplierPart.objects.all()
+        self.matches['default_supplier'] = ['SKU__contains']
+
+        # setup
+        self.file_manager.setup()
+        # collect submitted column indexes
+        col_ids = {}
+        for col in self.file_manager.HEADERS:
+            index = self.get_column_index(col)
+            if index >= 0:
+                col_ids[col] = index
+
+        # parse all rows
+        for row in self.rows:
+            # check each submitted column
+            for idx in col_ids:
+                data = row['data'][col_ids[idx]]['cell']
+
+                if idx in self.file_manager.OPTIONAL_MATCH_HEADERS:
+                    try:
+                        exact_match = self.allowed_items[idx].get(**{a: data for a in self.matches[idx]})
+                    except (ValueError, self.allowed_items[idx].model.DoesNotExist, self.allowed_items[idx].model.MultipleObjectsReturned):
+                        exact_match = None
+
+                    row['match_options_' + idx] = self.allowed_items[idx]
+                    row['match_' + idx] = exact_match
+                    continue
+
+                # general fields
+                row[idx.lower()] = data
+
+    def done(self, form_list, **kwargs):
+        """ Create items """
+        items = self.get_clean_items()
+
+        import_done = 0
+        import_error = []
+
+        # Create Part instances
+        for part_data in items.values():
+
+            # set related parts
+            optional_matches = {}
+            for idx in self.file_manager.OPTIONAL_MATCH_HEADERS:
+                if idx.lower() in part_data:
+                    try:
+                        optional_matches[idx] = self.allowed_items[idx].get(pk=int(part_data[idx.lower()]))
+                    except (ValueError, self.allowed_items[idx].model.DoesNotExist, self.allowed_items[idx].model.MultipleObjectsReturned):
+                        optional_matches[idx] = None
+                else:
+                    optional_matches[idx] = None
+
+            # add part
+            new_part = Part(
+                name=part_data.get('name', ''),
+                description=part_data.get('description', ''),
+                keywords=part_data.get('keywords', None),
+                IPN=part_data.get('ipn', None),
+                revision=part_data.get('revision', None),
+                link=part_data.get('link', None),
+                default_expiry=part_data.get('default_expiry', 0),
+                minimum_stock=part_data.get('minimum_stock', 0),
+                units=part_data.get('units', None),
+                notes=part_data.get('notes', None),
+                category=optional_matches['Category'],
+                default_location=optional_matches['default_location'],
+                default_supplier=optional_matches['default_supplier'],
+            )
+            try:
+                new_part.save()
+                import_done += 1
+            except ValidationError as _e:
+                import_error.append(', '.join(set(_e.messages)))
+
+        # Set alerts
+        if import_done:
+            alert = f"<strong>{_('Part-Import')}</strong><br>{_('Imported {n} parts').format(n=import_done)}"
+            messages.success(self.request, alert)
+        if import_error:
+            error_text = '\n'.join([f'<li><strong>x{import_error.count(a)}</strong>: {a}</li>' for a in set(import_error)])
+            messages.error(self.request, f"<strong>{_('Some errors occured:')}</strong><br><ul>{error_text}</ul>")
+
+        return HttpResponseRedirect(reverse('part-index'))
+
+
+class PartImportAjax(FileManagementAjaxView, PartImport):
+    ajax_form_steps_template = [
+        'part/import_wizard/ajax_part_upload.html',
+        'part/import_wizard/ajax_match_fields.html',
+        'part/import_wizard/ajax_match_references.html',
+    ]
+
+    def validate(self, obj, form, **kwargs):
+        return PartImport.validate(self, self.steps.current, form, **kwargs)
+
+
 class PartNotes(UpdateView):
     """ View for editing the 'notes' field of a Part object.
     Presents a live markdown editor.
@@ -814,7 +981,7 @@ class PartPricingView(PartDetail):
         part = self.get_part()
         # Stock history
         if part.total_stock > 1:
-            ret = []
+            price_history = []
             stock = part.stock_entries(include_variants=False, in_stock=True)  # .order_by('purchase_order__date')
             stock = stock.prefetch_related('purchase_order', 'supplier_part')
 
@@ -841,22 +1008,33 @@ class PartPricingView(PartDetail):
                     line['date'] = stock_item.purchase_order.issue_date.strftime('%d.%m.%Y')
                 else:
                     line['date'] = stock_item.tracking_info.first().date.strftime('%d.%m.%Y')
-                ret.append(line)
+                price_history.append(line)
 
-            ctx['price_history'] = ret
+            ctx['price_history'] = price_history
 
         # BOM Information for Pie-Chart
-        bom_items = [{'name': str(a.sub_part), 'price': a.sub_part.get_price_range(quantity), 'q': a.quantity} for a in part.bom_items.all()]
-        if [True for a in bom_items if len(set(a['price'])) == 2]:
-            ctx['bom_parts'] = [{
-                'name': a['name'],
-                'min_price': str((a['price'][0] * a['q']) / quantity),
-                'max_price': str((a['price'][1] * a['q']) / quantity)} for a in bom_items]
-            ctx['bom_pie_min'] = True
-        else:
-            ctx['bom_parts'] = [{
-                'name': a['name'],
-                'price': str((a['price'][0] * a['q']) / quantity)} for a in bom_items]
+        if part.has_bom:
+            # get internal price setting
+            use_internal = InvenTreeSetting.get_setting('PART_BOM_USE_INTERNAL_PRICE', False)
+            ctx_bom_parts = []
+            # iterate over all bom-items
+            for item in part.bom_items.all():
+                ctx_item = {'name': str(item.sub_part)}
+                price, qty = item.sub_part.get_price_range(quantity, internal=use_internal), item.quantity
+
+                price_min, price_max = 0, 0
+                if price:  # check if price available
+                    price_min = str((price[0] * qty) / quantity)
+                    if len(set(price)) == 2:  # min and max-price present
+                        price_max = str((price[1] * qty) / quantity)
+                        ctx['bom_pie_max'] = True  # enable showing max prices in bom
+
+                ctx_item['max_price'] = price_min
+                ctx_item['min_price'] = price_max if price_max else price_min
+                ctx_bom_parts.append(ctx_item)
+
+            # add to global context
+            ctx['bom_parts'] = ctx_bom_parts
 
         return ctx
 
@@ -2105,7 +2283,8 @@ class PartPricing(AjaxView):
         # BOM pricing information
         if part.bom_count > 0:
 
-            bom_price = part.get_bom_price_range(quantity)
+            use_internal = InvenTreeSetting.get_setting('PART_BOM_USE_INTERNAL_PRICE', False)
+            bom_price = part.get_bom_price_range(quantity, internal=use_internal)
 
             if bom_price is not None:
                 min_bom_price, max_bom_price = bom_price
@@ -2127,6 +2306,12 @@ class PartPricing(AjaxView):
                     ctx['max_total_bom_price'] = max_bom_price
                     ctx['max_unit_bom_price'] = max_unit_bom_price
 
+        # internal part pricing information
+        internal_part_price = part.get_internal_price(quantity)
+        if internal_part_price is not None:
+            ctx['total_internal_part_price'] = round(internal_part_price, 3)
+            ctx['unit_internal_part_price'] = round(internal_part_price / quantity, 3)
+
         # part pricing information
         part_price = part.get_price(quantity)
         if part_price is not None:
@@ -2764,7 +2949,7 @@ class PartSalePriceBreakCreate(AjaxCreateView):
 
         initials['part'] = self.get_part()
 
-        default_currency = settings.BASE_CURRENCY
+        default_currency = inventree_settings.currency_code_default()
         currency = CURRENCIES.get(default_currency, None)
 
         if currency is not None:
@@ -2794,3 +2979,29 @@ class PartSalePriceBreakDelete(AjaxDeleteView):
     model = PartSellPriceBreak
     ajax_form_title = _("Delete Price Break")
     ajax_template_name = "modal_delete_form.html"
+
+
+class PartInternalPriceBreakCreate(PartSalePriceBreakCreate):
+    """ View for creating a internal price break for a part """
+
+    model = PartInternalPriceBreak
+    form_class = part_forms.EditPartInternalPriceBreakForm
+    ajax_form_title = _('Add Internal Price Break')
+    permission_required = 'roles.sales_order.add'
+
+
+class PartInternalPriceBreakEdit(PartSalePriceBreakEdit):
+    """ View for editing a internal price break """
+
+    model = PartInternalPriceBreak
+    form_class = part_forms.EditPartInternalPriceBreakForm
+    ajax_form_title = _('Edit Internal Price Break')
+    permission_required = 'roles.sales_order.change'
+
+
+class PartInternalPriceBreakDelete(PartSalePriceBreakDelete):
+    """ View for deleting a internal price break """
+
+    model = PartInternalPriceBreak
+    ajax_form_title = _("Delete Internal Price Break")
+    permission_required = 'roles.sales_order.delete'
diff --git a/InvenTree/stock/admin.py b/InvenTree/stock/admin.py
index f32fa008a0..5f1b134966 100644
--- a/InvenTree/stock/admin.py
+++ b/InvenTree/stock/admin.py
@@ -44,6 +44,13 @@ class LocationResource(ModelResource):
         StockLocation.objects.rebuild()
 
 
+class LocationInline(admin.TabularInline):
+    """
+    Inline for sub-locations
+    """
+    model = StockLocation
+
+
 class LocationAdmin(ImportExportModelAdmin):
 
     resource_class = LocationResource
@@ -52,6 +59,10 @@ class LocationAdmin(ImportExportModelAdmin):
 
     search_fields = ('name', 'description')
 
+    inlines = [
+        LocationInline,
+    ]
+
 
 class StockItemResource(ModelResource):
     """ Class for managing StockItem data import/export """
diff --git a/InvenTree/stock/migrations/0061_auto_20210511_0911.py b/InvenTree/stock/migrations/0061_auto_20210511_0911.py
index 0ab37250c8..ba0ecc5207 100644
--- a/InvenTree/stock/migrations/0061_auto_20210511_0911.py
+++ b/InvenTree/stock/migrations/0061_auto_20210511_0911.py
@@ -199,7 +199,8 @@ def update_history(apps, schema_editor):
                 update_count += 1
 
 
-    print(f"\n==========================\nUpdated {update_count} StockItemHistory entries")
+    if update_count > 0:
+        print(f"\n==========================\nUpdated {update_count} StockItemHistory entries")
 
 
 def reverse_update(apps, schema_editor):
diff --git a/InvenTree/stock/migrations/0064_auto_20210621_1724.py b/InvenTree/stock/migrations/0064_auto_20210621_1724.py
new file mode 100644
index 0000000000..361ad02c80
--- /dev/null
+++ b/InvenTree/stock/migrations/0064_auto_20210621_1724.py
@@ -0,0 +1,78 @@
+# Generated by Django 3.2.4 on 2021-06-21 07:24
+
+from django.db import migrations
+
+
+def extract_purchase_price(apps, schema_editor):
+    """
+    Find instances of StockItem which do *not* have a purchase price set,
+    but which point to a PurchaseOrder where there *is* a purchase price set.
+
+    Then, assign *that* purchase price to original StockItem.
+
+    This is to address an issue where older versions of InvenTree
+    did not correctly copy purchase price information cross to the StockItem objects.
+
+    Current InvenTree version (as of 2021-06-21) copy this information across correctly,
+    so this one-time data migration should suffice.
+    """
+
+    # Required database models
+    StockItem = apps.get_model('stock', 'stockitem')
+    PurchaseOrder = apps.get_model('order', 'purchaseorder')
+    PurchaseOrderLineItem = apps.get_model('order', 'purchaseorderlineitem')
+    Part = apps.get_model('part', 'part')
+
+    # Find all the StockItem objects without a purchase_price which point to a PurchaseOrder
+    items = StockItem.objects.filter(purchase_price=None).exclude(purchase_order=None)
+
+    if items.count() > 0:
+        print(f"Found {items.count()} stock items with missing purchase price information")
+
+    update_count = 0
+
+    for item in items:
+
+        part_id = item.part
+
+        po = item.purchase_order
+
+        # Look for a matching PurchaseOrderLineItem (with a price)
+        lines = PurchaseOrderLineItem.objects.filter(part__part=part_id, order=po)
+
+        if lines.exists():
+
+            for line in lines:
+                if line.purchase_price is not None:
+
+                    # Copy pricing information across
+                    item.purchase_price = line.purchase_price
+                    item.purchases_price_currency = line.purchase_price_currency
+
+                    print(f"- Updating supplier price for {item.part.name} - {item.purchase_price} {item.purchase_price_currency}")
+
+                    update_count += 1
+
+                    item.save()
+
+                    break
+
+    if update_count > 0:
+        print(f"Updated pricing for {update_count} stock items")
+
+def reverse_operation(apps, schema_editor):
+    """
+    DO NOTHING!
+    """
+    pass
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('stock', '0063_auto_20210511_2343'),
+    ]
+
+    operations = [
+        migrations.RunPython(extract_purchase_price, reverse_code=reverse_operation)
+    ]
diff --git a/InvenTree/stock/migrations/0065_auto_20210701_0509.py b/InvenTree/stock/migrations/0065_auto_20210701_0509.py
new file mode 100644
index 0000000000..99cde1e7f7
--- /dev/null
+++ b/InvenTree/stock/migrations/0065_auto_20210701_0509.py
@@ -0,0 +1,25 @@
+# Generated by Django 3.2.4 on 2021-07-01 05:09
+
+import InvenTree.fields
+from django.db import migrations
+import djmoney.models.fields
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('stock', '0064_auto_20210621_1724'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='stockitem',
+            name='purchase_price',
+            field=InvenTree.fields.InvenTreeModelMoneyField(blank=True, currency_choices=[], decimal_places=4, default_currency='', help_text='Single unit purchase price at time of purchase', max_digits=19, null=True, verbose_name='Purchase Price'),
+        ),
+        migrations.AlterField(
+            model_name='stockitem',
+            name='purchase_price_currency',
+            field=djmoney.models.fields.CurrencyField(choices=[], default='', editable=False, max_length=3),
+        ),
+    ]
diff --git a/InvenTree/stock/models.py b/InvenTree/stock/models.py
index 9786b360d9..446dce5c75 100644
--- a/InvenTree/stock/models.py
+++ b/InvenTree/stock/models.py
@@ -20,14 +20,10 @@ from django.contrib.auth.models import User
 from django.db.models.signals import pre_delete
 from django.dispatch import receiver
 
-from common.settings import currency_code_default
-
 from markdownx.models import MarkdownxField
 
 from mptt.models import MPTTModel, TreeForeignKey
 
-from djmoney.models.fields import MoneyField
-
 from decimal import Decimal, InvalidOperation
 from datetime import datetime, timedelta
 from InvenTree import helpers
@@ -38,7 +34,7 @@ import label.models
 
 from InvenTree.status_codes import StockStatus, StockHistoryCode
 from InvenTree.models import InvenTreeTree, InvenTreeAttachment
-from InvenTree.fields import InvenTreeURLField
+from InvenTree.fields import InvenTreeModelMoneyField, InvenTreeURLField
 
 from users.models import Owner
 
@@ -533,10 +529,9 @@ class StockItem(MPTTModel):
         help_text=_('Stock Item Notes')
     )
 
-    purchase_price = MoneyField(
+    purchase_price = InvenTreeModelMoneyField(
         max_digits=19,
         decimal_places=4,
-        default_currency=currency_code_default(),
         blank=True,
         null=True,
         verbose_name=_('Purchase Price'),
diff --git a/InvenTree/stock/serializers.py b/InvenTree/stock/serializers.py
index d60689ccef..a0b7e3403a 100644
--- a/InvenTree/stock/serializers.py
+++ b/InvenTree/stock/serializers.py
@@ -81,6 +81,7 @@ class StockItemSerializer(InvenTreeModelSerializer):
             'belongs_to',
             'build',
             'customer',
+            'purchase_order',
             'sales_order',
             'supplier_part',
             'supplier_part__supplier',
@@ -163,6 +164,10 @@ class StockItemSerializer(InvenTreeModelSerializer):
 
     purchase_price = serializers.SerializerMethodField()
 
+    purchase_order_reference = serializers.CharField(source='purchase_order.reference', read_only=True)
+
+    sales_order_reference = serializers.CharField(source='sales_order.reference', read_only=True)
+
     def get_purchase_price(self, obj):
         """ Return purchase_price (Money field) as string (includes currency) """
 
@@ -208,10 +213,13 @@ class StockItemSerializer(InvenTreeModelSerializer):
             'packaging',
             'part',
             'part_detail',
+            'purchase_order',
+            'purchase_order_reference',
             'pk',
             'quantity',
             'required_tests',
             'sales_order',
+            'sales_order_reference',
             'serial',
             'stale',
             'status',
diff --git a/InvenTree/stock/templates/stock/item_base.html b/InvenTree/stock/templates/stock/item_base.html
index fa91177bf6..bf9d10590f 100644
--- a/InvenTree/stock/templates/stock/item_base.html
+++ b/InvenTree/stock/templates/stock/item_base.html
@@ -325,7 +325,7 @@
         <td><a href="{% url 'po-detail' item.purchase_order.id %}">{{ item.purchase_order }}</a></td>
     </tr>
     {% endif %}
-    {% if item.purchase_price %}
+    {% if item.purchase_price != None %}
     <tr>
         <td><span class='fas fa-dollar-sign'></span></td>
         <td>{% trans "Purchase Price" %}</td>
@@ -350,7 +350,12 @@
     <tr>
         <td><span class='fas fa-industry'></span></td>
         <td>{% trans "Manufacturer" %}</td>
-        <td><a href="{% url 'company-detail' item.supplier_part.manufacturer_part.manufacturer.id %}">{{ item.supplier_part.manufacturer_part.manufacturer.name }}</a></td>
+        {% if item.supplier_part.manufacturer_part.manufacturer %}
+            <td><a href="{% url 'company-detail' item.supplier_part.manufacturer_part.manufacturer.id %}">{{ item.supplier_part.manufacturer_part.manufacturer.name }}</a></td>
+        {% else %}
+            <td><i>{% trans "No manufacturer set" %}</i></td>
+        {% endif %}
+
     </tr>
     <tr>
         <td><span class='fas fa-hashtag'></span></td>
diff --git a/InvenTree/stock/test_api.py b/InvenTree/stock/test_api.py
index e1fb616335..729bf25a9b 100644
--- a/InvenTree/stock/test_api.py
+++ b/InvenTree/stock/test_api.py
@@ -354,16 +354,18 @@ class StockItemTest(StockAPITestCase):
         self.assertContains(response, 'does not exist', status_code=status.HTTP_400_BAD_REQUEST)
 
         # POST without quantity
-        response = self.client.post(
+        response = self.post(
             self.list_url,
-            data={
+            {
                 'part': 1,
                 'location': 1,
-            }
+            },
+            expected_code=201,
         )
 
-        self.assertContains(response, 'This field is required', status_code=status.HTTP_400_BAD_REQUEST)
-
+        # Item should have been created with default quantity
+        self.assertEqual(response.data['quantity'], 1)
+        
         # POST with quantity and part and location
         response = self.client.post(
             self.list_url,
diff --git a/InvenTree/templates/InvenTree/settings/currencies.html b/InvenTree/templates/InvenTree/settings/currencies.html
index 78598236f9..6e61533e6b 100644
--- a/InvenTree/templates/InvenTree/settings/currencies.html
+++ b/InvenTree/templates/InvenTree/settings/currencies.html
@@ -12,6 +12,13 @@
 
 {% block settings %}
 
+<table class='table table-striped table-condensed'>
+    {% include "InvenTree/settings/header.html" %}
+    <tbody>
+        {% include "InvenTree/settings/setting.html" with key="INVENTREE_DEFAULT_CURRENCY" icon="fa-globe" %}
+    </tbody>
+</table>
+
 <table class='table table-striped table-condensed'>
     <tbody>
         <tr>
diff --git a/InvenTree/templates/InvenTree/settings/part.html b/InvenTree/templates/InvenTree/settings/part.html
index e359acdfc2..d4b386e77f 100644
--- a/InvenTree/templates/InvenTree/settings/part.html
+++ b/InvenTree/templates/InvenTree/settings/part.html
@@ -20,6 +20,8 @@
         {% include "InvenTree/settings/setting.html" with key="PART_ALLOW_DUPLICATE_IPN" %}
         {% include "InvenTree/settings/setting.html" with key="PART_ALLOW_EDIT_IPN" %}
         {% include "InvenTree/settings/setting.html" with key="PART_SHOW_QUANTITY_IN_FORMS" icon="fa-hashtag" %}
+        {% include "InvenTree/settings/setting.html" with key="PART_SHOW_PRICE_IN_FORMS" icon="fa-dollar-sign" %}
+        {% include "InvenTree/settings/setting.html" with key="PART_SHOW_RELATED" icon="fa-random" %}
         {% include "InvenTree/settings/setting.html" with key="PART_RECENT_COUNT" icon="fa-clock" %}
         <tr><td colspan='5  '></td></tr>
         {% include "InvenTree/settings/setting.html" with key="PART_TEMPLATE" icon="fa-clone" %}
@@ -34,9 +36,28 @@
         {% include "InvenTree/settings/setting.html" with key="PART_COPY_PARAMETERS" %}
         {% include "InvenTree/settings/setting.html" with key="PART_COPY_TESTS" %}
         {% include "InvenTree/settings/setting.html" with key="PART_CATEGORY_PARAMETERS" %}
+        <tr><td colspan='5'></td></tr>
+        {% include "InvenTree/settings/setting.html" with key="PART_INTERNAL_PRICE" %}
+        {% include "InvenTree/settings/setting.html" with key="PART_BOM_USE_INTERNAL_PRICE" %}
     </tbody>
 </table>
 
+<h4>{% trans "Part Import" %}</h4>
+
+    <button class='btn btn-success' id='import-part'>
+        <span class='fas fa-plus-circle'></span> {% trans "Import Part" %}
+    </button>
+
+
+<table class='table table-striped table-condensed'>
+    {% include "InvenTree/settings/header.html" %}
+    <tbody>
+        {% include "InvenTree/settings/setting.html" with key="PART_SHOW_IMPORT" icon="fa-file-upload" %}
+    </tbody>
+</table>
+
+
+
 <h4>{% trans "Part Parameter Templates" %}</h4>
 
 <div id='param-buttons'>
@@ -121,4 +142,8 @@
         });
     });
 
+    $("#import-part").click(function() {
+        launchModalForm("{% url 'api-part-import' %}?reset", {});
+    });
+
 {% endblock %}
\ No newline at end of file
diff --git a/InvenTree/templates/about.html b/InvenTree/templates/about.html
index 7b023295d1..358d468ca8 100644
--- a/InvenTree/templates/about.html
+++ b/InvenTree/templates/about.html
@@ -34,6 +34,11 @@
                                 <td>{% trans "API Version" %}</td>
                                 <td>{% inventree_api_version %}{% include "clip.html" %}</td>
                             </tr>
+                            <tr>
+                                <td><span class='fas fa-hashtag'></span></td>
+                                <td>{% trans "Python Version" %}</td>
+                                <td>{% python_version %}</td>
+                            </tr>
                             <tr>
                                 <td><span class='fas fa-hashtag'></span></td>
                                 <td>{% trans "Django Version" %}</td>
diff --git a/InvenTree/templates/js/bom.js b/InvenTree/templates/js/bom.js
index 7328bcb331..665379d8d5 100644
--- a/InvenTree/templates/js/bom.js
+++ b/InvenTree/templates/js/bom.js
@@ -259,26 +259,19 @@ function loadBomTable(table, options) {
         sortable: true,
     });
 
-    /*
-
-    // TODO - Re-introduce the pricing column at a later stage,
-    //        once the pricing has been "fixed"
-    //        O.W. 2020-11-24
-
     cols.push(
     {
         field: 'price_range',
-        title: '{% trans "Price" %}',
+        title: '{% trans "Buy Price" %}',
         sortable: true,
         formatter: function(value, row, index, field) {
             if (value) {
                 return value;
             } else {
-                return "<span class='warning-msg'>{% trans "No pricing available" %}</span>";
+                return "<span class='warning-msg'>{% trans 'No pricing available' %}</span>";
             }
         }
     });
-    */
 
     cols.push({
         field: 'optional',
diff --git a/InvenTree/templates/js/build.js b/InvenTree/templates/js/build.js
index 9523d24d39..7b72149ec9 100644
--- a/InvenTree/templates/js/build.js
+++ b/InvenTree/templates/js/build.js
@@ -155,6 +155,89 @@ function makeBuildOutputActionButtons(output, buildInfo, lines) {
 }
 
 
+function loadBuildOrderAllocationTable(table, options={}) {
+    /**
+     * Load a table showing all the BuildOrder allocations for a given part
+     */
+
+    options.params['part_detail'] = true;
+    options.params['build_detail'] = true;
+    options.params['location_detail'] = true;
+
+    var filters = loadTableFilters("buildorderallocation");
+
+    for (var key in options.params) {
+        filters[key] = options.params[key];
+    }
+
+    setupFilterList("buildorderallocation", $(table));
+
+    $(table).inventreeTable({
+        url: '{% url "api-build-item-list" %}',
+        queryParams: filters,
+        name: 'buildorderallocation',
+        groupBy: false,
+        search: false,
+        paginationVAlign: 'bottom',
+        original: options.params,
+        formatNoMatches: function() {
+            return '{% trans "No build order allocations found" %}'
+        },
+        columns: [
+            {
+                field: 'pk',
+                visible: false,
+                switchable: false,
+            },
+            {
+                field: 'build',
+                switchable: false,
+                title: '{% trans "Build Order" %}',
+                formatter: function(value, row) {
+                    var prefix = "{% settings_value 'BUILDORDER_REFERENCE_PREFIX' %}";
+
+                    var ref = `${prefix}${row.build_detail.reference}`;
+
+                    return renderLink(ref, `/build/${row.build}/`);
+                }
+            },
+            {
+                field: 'item',
+                title: '{% trans "Stock Item" %}',
+                formatter: function(value, row) {
+                    // Render a link to the particular stock item
+
+                    var link = `/stock/item/${row.stock_item}/`;
+                    var text = `{% trans "Stock Item" %} ${row.stock_item}`;
+
+                    return renderLink(text, link);
+                }
+            },
+            {
+                field: 'location',
+                title: '{% trans "Location" %}',
+                formatter: function(value, row) {
+
+                    if (!value) {
+                        return '{% trans "Location not specified" %}';
+                    }
+                    
+                    var link = `/stock/location/${value}`;
+                    var text = row.location_detail.description;
+
+                    return renderLink(text, link);
+                }
+            },
+            {
+                field: 'quantity',
+                title: '{% trans "Quantity" %}',
+                sortable: true,
+            }
+        ]
+    });
+}
+
+
 function loadBuildOutputAllocationTable(buildInfo, output, options={}) {
     /*
      * Load the "allocation table" for a particular build output.
@@ -336,6 +419,7 @@ function loadBuildOutputAllocationTable(buildInfo, output, options={}) {
             sub_part_detail: true,
             sub_part_trackable: trackable,
         },
+        disablePagination: true,
         formatNoMatches: function() { 
             return '{% trans "No BOM items found" %}';
         },
@@ -347,6 +431,8 @@ function loadBuildOutputAllocationTable(buildInfo, output, options={}) {
 
             var params = {
                 build: buildId,
+                part_detail: true,
+                location_detail: true,
             }
 
             if (output) {
@@ -466,8 +552,8 @@ function loadBuildOutputAllocationTable(buildInfo, output, options={}) {
                         title: '{% trans "Part" %}',
                         formatter: function(value, row) {
 
-                            var html = imageHoverIcon(row.part_thumb);
-                            html += renderLink(row.part_name, `/part/${value}/`);
+                            var html = imageHoverIcon(row.part_detail.thumbnail);
+                            html += renderLink(row.part_detail.full_name, `/part/${value}/`);
                             return html;
                         }
                     },
@@ -583,6 +669,7 @@ function loadBuildOutputAllocationTable(buildInfo, output, options={}) {
             {
                 field: 'sub_part_detail.stock',
                 title: '{% trans "Available" %}',
+                sortable: true,
             },
             {
                 field: 'allocated',
@@ -602,14 +689,13 @@ function loadBuildOutputAllocationTable(buildInfo, output, options={}) {
                     return makeProgressBar(allocated, required);
                 },
                 sorter: function(valA, valB, rowA, rowB) {
+                    // Custom sorting function for progress bars
+                    
                     var aA = sumAllocations(rowA);
                     var aB = sumAllocations(rowB);
 
-                    var qA = rowA.quantity;
-                    var qB = rowB.quantity;
-
-                    qA *= output.quantity;
-                    qB *= output.quantity;
+                    var qA = requiredQuantity(rowA);
+                    var qB = requiredQuantity(rowB);
 
                     // Handle the case where both numerators are zero
                     if ((aA == 0) && (aB == 0)) {
@@ -629,6 +715,8 @@ function loadBuildOutputAllocationTable(buildInfo, output, options={}) {
                         return (qA < qB) ? 1 : -1;
                     }
 
+                    if (progressA == progressB) return 0;
+
                     return (progressA < progressB) ? 1 : -1;
                 }
             },
diff --git a/InvenTree/templates/js/company.js b/InvenTree/templates/js/company.js
index be4b707466..078b40f4b9 100644
--- a/InvenTree/templates/js/company.js
+++ b/InvenTree/templates/js/company.js
@@ -126,7 +126,7 @@ function loadManufacturerPartTable(table, url, options) {
         queryParams: filters,
         name: 'manufacturerparts',
         groupBy: false,
-        formatNoMatches: function() { return "{% trans "No manufacturer parts found" %}"; },
+        formatNoMatches: function() { return '{% trans "No manufacturer parts found" %}'; },
         columns: [
             {
                 checkbox: true,
@@ -199,6 +199,107 @@ function loadManufacturerPartTable(table, url, options) {
 }
 
 
+function loadManufacturerPartParameterTable(table, url, options) {
+    /*
+     * Load table of ManufacturerPartParameter objects
+     */
+
+    var params = options.params || {};
+
+    // Load filters
+    var filters = loadTableFilters("manufacturer-part-parameters");
+
+    // Overwrite explicit parameters
+    for (var key in params) {
+        filters[key] = params[key];
+    }
+
+    // setupFilterList("manufacturer-part-parameters", $(table));
+
+    $(table).inventreeTable({
+        url: url,
+        method: 'get',
+        original: params,
+        queryParams: filters,
+        name: 'manufacturerpartparameters',
+        groupBy: false,
+        formatNoMatches: function() { return '{% trans "No parameters found" %}'; },
+        columns: [
+            {
+                checkbox: true,
+                switchable: false,
+                visible: false,
+            },
+            {
+                field: 'name',
+                title: '{% trans "Name" %}',
+                switchable: false,
+                sortable: true,
+            },
+            {
+                field: 'value',
+                title: '{% trans "Value" %}',
+                switchable: false,
+                sortable: true,
+            },
+            {
+                field: 'units',
+                title: '{% trans "Units" %}',
+                switchable: true,
+                sortable: true,
+            },
+            {
+                field: 'actions',
+                title: '',
+                switchable: false,
+                sortable: false,
+                formatter: function(value, row) {
+
+                    var pk = row.pk;
+
+                    var html = `<div class='btn-group float-right' role='group'>`;
+
+                    html += makeIconButton('fa-edit icon-blue', 'button-parameter-edit', pk, '{% trans "Edit parameter" %}');
+                    html += makeIconButton('fa-trash-alt icon-red', 'button-parameter-delete', pk, '{% trans "Delete parameter" %}');
+
+                    html += `</div>`;
+
+                    return html;
+                }
+            }
+        ],
+        onPostBody: function() {
+            // Setup callback functions
+            $(table).find('.button-parameter-edit').click(function() {
+                var pk = $(this).attr('pk');
+
+                launchModalForm(
+                    `/manufacturer-part/parameter/${pk}/edit/`,
+                    {
+                        success: function() {
+                            $(table).bootstrapTable('refresh');
+                        }
+                    }
+                );
+
+            });
+            $(table).find('.button-parameter-delete').click(function() {
+                var pk = $(this).attr('pk');
+
+                launchModalForm(
+                    `/manufacturer-part/parameter/${pk}/delete/`,
+                    {
+                        success: function() {
+                            $(table).bootstrapTable('refresh');
+                        }
+                    }
+                );
+            });
+        }
+    });
+}
+
+
 function loadSupplierPartTable(table, url, options) {
     /*
      * Load supplier part table
@@ -224,7 +325,7 @@ function loadSupplierPartTable(table, url, options) {
         queryParams: filters,
         name: 'supplierparts',
         groupBy: false,
-        formatNoMatches: function() { return "{% trans "No supplier parts found" %}"; },
+        formatNoMatches: function() { return '{% trans "No supplier parts found" %}'; },
         columns: [
             {
                 checkbox: true,
@@ -260,7 +361,7 @@ function loadSupplierPartTable(table, url, options) {
             {
                 sortable: true,
                 field: 'supplier',
-                title: "{% trans "Supplier" %}",
+                title: '{% trans "Supplier" %}',
                 formatter: function(value, row, index, field) {
                     if (value) {
                         var name = row.supplier_detail.name;
@@ -276,7 +377,7 @@ function loadSupplierPartTable(table, url, options) {
             {
                 sortable: true,
                 field: 'SKU',
-                title: "{% trans "Supplier Part" %}",
+                title: '{% trans "Supplier Part" %}',
                 formatter: function(value, row, index, field) {
                     return renderLink(value, `/supplier-part/${row.pk}/`);
                 }
diff --git a/InvenTree/templates/js/modals.js b/InvenTree/templates/js/modals.js
index c8ebd90eb4..03893a47b8 100644
--- a/InvenTree/templates/js/modals.js
+++ b/InvenTree/templates/js/modals.js
@@ -776,7 +776,8 @@ function handleModalForm(url, options) {
                     // Form was returned, invalid!
                     else {
 
-                        if (!options.hideErrorMessage) {
+                        // Disable error message with option or response
+                        if (!options.hideErrorMessage && !response.hideErrorMessage) {
                             var warningDiv = $(modal).find('#form-validation-warning');
                             warningDiv.css('display', 'block');
                         }
@@ -791,6 +792,19 @@ function handleModalForm(url, options) {
                             if (options.secondary) {
                                 attachSecondaries(modal, options.secondary);
                             }
+
+                            // Set modal title with response
+                            if (response.title) {
+                                modalSetTitle(modal, response.title);
+                            }
+
+                            // Clean custom action buttons
+                            $(modal).find('#modal-footer-buttons').html('');
+
+                            // Add custom action buttons with response
+                            if (response.buttons) {
+                                attachButtons(modal, response.buttons);
+                            }
                         }
                         else {
                             $(modal).modal('hide');
@@ -837,6 +851,7 @@ function launchModalForm(url, options = {}) {
      * secondary - List of secondary modals to attach
      * callback - List of callback functions to attach to inputs
      * focus - Select which field to focus on by default
+     * buttons - additional buttons that should be added as array with [name, title]
      */
 
     var modal = options.modal || '#modal-form';
@@ -896,6 +911,11 @@ function launchModalForm(url, options = {}) {
                     attachButtons(modal, options.buttons);
                 }
 
+                // Add custom buttons from response
+                if (response.buttons) {
+                    attachButtons(modal, response.buttons);
+                }
+
             } else {
                 $(modal).modal('hide');
                 showAlertDialog('{% trans "Invalid server response" %}', '{% trans "JSON response missing form data" %}');
diff --git a/InvenTree/templates/js/order.js b/InvenTree/templates/js/order.js
index fa60ebdf6d..0af54fa43c 100644
--- a/InvenTree/templates/js/order.js
+++ b/InvenTree/templates/js/order.js
@@ -310,3 +310,89 @@ function loadSalesOrderTable(table, options) {
         ],
     });
 }
+
+
+function loadSalesOrderAllocationTable(table, options={}) {
+    /**
+     * Load a table with SalesOrderAllocation items
+     */
+
+    options.params = options.params || {};
+
+    options.params['location_detail'] = true;
+    options.params['part_detail'] = true;
+    options.params['item_detail'] = true;
+    options.params['order_detail'] = true;
+
+    var filters = loadTableFilters("salesorderallocation");
+
+    for (var key in options.params) {
+        filters[key] = options.params[key];
+    }
+
+    setupFilterList("salesorderallocation", $(table));
+
+    $(table).inventreeTable({
+        url: '{% url "api-so-allocation-list" %}',
+        queryParams: filters,
+        name: 'salesorderallocation',
+        groupBy: false,
+        search: false,
+        paginationVAlign: 'bottom',
+        original: options.params,
+        formatNoMatches: function() { return '{% trans "No sales order allocations found" %}'; },
+        columns: [
+            {
+                field: 'pk',
+                visible: false,
+                switchable: false,
+            },
+            {
+                field: 'order',
+                switchable: false,
+                title: '{% trans "Order" %}',
+                switchable: false,
+                formatter: function(value, row) {
+
+                    var prefix = "{% settings_value 'SALESORDER_REFERENCE_PREFIX' %}";
+
+                    var ref = `${prefix}${row.order_detail.reference}`;
+
+                    return renderLink(ref, `/order/sales-order/${row.order}/`);
+                }
+            },
+            {
+                field: 'item',
+                title: '{% trans "Stock Item" %}',
+                formatter: function(value, row) {
+                    // Render a link to the particular stock item
+
+                    var link = `/stock/item/${row.item}/`;
+                    var text = `{% trans "Stock Item" %} ${row.item}`;
+
+                    return renderLink(text, link);
+                }
+            },
+            {
+                field: 'location',
+                title: '{% trans "Location" %}',
+                formatter: function(value, row) {
+
+                    if (!value) {
+                        return '{% trans "Location not specified" %}';
+                    }
+                    
+                    var link = `/stock/location/${value}`;
+                    var text = row.location_detail.description;
+
+                    return renderLink(text, link);
+                }
+            },
+            {
+                field: 'quantity',
+                title: '{% trans "Quantity" %}',
+                sortable: true,
+            }
+        ]
+    });
+}
\ No newline at end of file
diff --git a/InvenTree/templates/js/part.js b/InvenTree/templates/js/part.js
index 7331ec25e0..66174e2f15 100644
--- a/InvenTree/templates/js/part.js
+++ b/InvenTree/templates/js/part.js
@@ -447,6 +447,7 @@ function loadPartTable(table, url, options={}) {
 
     columns.push({
         sortable: true,
+        sortName: 'category',
         field: 'category_detail',
         title: '{% trans "Category" %}',
         formatter: function(value, row, index, field) {
diff --git a/InvenTree/templates/js/stock.js b/InvenTree/templates/js/stock.js
index 4e992df67f..b557f0c327 100644
--- a/InvenTree/templates/js/stock.js
+++ b/InvenTree/templates/js/stock.js
@@ -179,27 +179,32 @@ function loadStockTestResultsTable(table, options) {
                             var match = false;
                             var override = false;
 
+                            // Extract the simplified test key
                             var key = item.key;
 
                             // Attempt to associate this result with an existing test
-                            tableData.forEach(function(row, index) {
+                            for (var idx = 0; idx < tableData.length; idx++) {
+
+                                var row = tableData[idx];
 
                                 if (key == row.key) {
 
                                     item.test_name = row.test_name;
                                     item.required = row.required;
 
-                                    match = true;
-                                    
                                     if (row.result == null) {
                                         item.parent = parent_node;
-                                        tableData[index] = item;
+                                        tableData[idx] = item;
                                         override = true;
                                     } else {
                                         item.parent = row.pk;
                                     }
+
+                                    match = true;
+
+                                    break;
                                 }
-                            });
+                            }
 
                             // No match could be found
                             if (!match) {
@@ -603,7 +608,6 @@ function loadStockTable(table, options) {
 
                     // REJECTED
                     if (row.status == {{ StockStatus.REJECTED }}) {
-                        console.log("REJECTED - {{ StockStatus.REJECTED }}");
                         html += makeIconBadge('fa-times-circle icon-red', '{% trans "Stock item has been rejected" %}');
                     }
                     // LOST
@@ -660,6 +664,27 @@ function loadStockTable(table, options) {
                 title: '{% trans "Last Updated" %}',
                 sortable: true,
             },
+            {
+                field: 'purchase_order',
+                title: '{% trans "Purchase Order" %}',
+                formatter: function(value, row) {
+                    if (!value) {
+                        return '-';
+                    }
+
+                    var link = `/order/purchase-order/${row.purchase_order}/`;
+                    var text = `${row.purchase_order}`;
+
+                    if (row.purchase_order_reference) {
+
+                        var prefix = '{% settings_value "PURCHASEORDER_REFERENCE_PREFIX" %}';
+
+                        text = prefix + row.purchase_order_reference;
+                    }
+
+                    return renderLink(text, link);
+                }
+            },
             {
                 field: 'purchase_price',
                 title: '{% trans "Purchase Price" %}',
diff --git a/InvenTree/templates/js/tables.js b/InvenTree/templates/js/tables.js
index 26d7ee4da9..96eb3f8123 100644
--- a/InvenTree/templates/js/tables.js
+++ b/InvenTree/templates/js/tables.js
@@ -134,12 +134,14 @@ $.fn.inventreeTable = function(options) {
     var varName = tableName + '-pagesize';
 
     // Pagingation options (can be server-side or client-side as specified by the caller)
-    options.pagination = true;
-    options.paginationVAlign = 'both';
-    options.pageSize = inventreeLoad(varName, 25);
-    options.pageList = [25, 50, 100, 250, 'all'];
-    options.totalField = 'count';
-    options.dataField = 'results';
+    if (!options.disablePagination) {
+        options.pagination = true;
+        options.paginationVAlign = options.paginationVAlign || 'both';
+        options.pageSize = inventreeLoad(varName, 25);
+        options.pageList = [25, 50, 100, 250, 'all'];
+        options.totalField = 'count';
+        options.dataField = 'results';
+    }
 
     // Extract query params
     var filters = options.queryParams || options.filters || {};
diff --git a/InvenTree/templates/two_column.html b/InvenTree/templates/two_column.html
index 1eb1b5388e..c942bef1fa 100644
--- a/InvenTree/templates/two_column.html
+++ b/InvenTree/templates/two_column.html
@@ -43,6 +43,9 @@
 </div>
 {% endblock %}
 
+{% block pre_content_panels %}
+{% endblock %}
+
 {% block content_panels %}
 <div class='panel panel-default panel-inventree'>
     <div class='panel-heading'>
@@ -63,6 +66,9 @@
 </div>
 {% endblock %}
 
+{% block post_content_panels %}
+{% endblock %}
+
 {% endblock %}
 
 {% block js_ready %}
diff --git a/InvenTree/users/apps.py b/InvenTree/users/apps.py
index a9f671895d..f6666e3a94 100644
--- a/InvenTree/users/apps.py
+++ b/InvenTree/users/apps.py
@@ -13,7 +13,7 @@ class UsersConfig(AppConfig):
 
     def ready(self):
 
-        if canAppAccessDatabase():
+        if canAppAccessDatabase(allow_test=True):
 
             try:
                 self.assign_permissions()
diff --git a/InvenTree/users/models.py b/InvenTree/users/models.py
index f26a7ee64b..2763ba0e10 100644
--- a/InvenTree/users/models.py
+++ b/InvenTree/users/models.py
@@ -77,6 +77,7 @@ class RuleSet(models.Model):
             'part_bomitem',
             'part_partattachment',
             'part_partsellpricebreak',
+            'part_partinternalpricebreak',
             'part_parttesttemplate',
             'part_partparametertemplate',
             'part_partparameter',
@@ -84,6 +85,7 @@ class RuleSet(models.Model):
             'part_partstar',
             'company_supplierpart',
             'company_manufacturerpart',
+            'company_manufacturerpartparameter',
         ],
         'stock_location': [
             'stock_stocklocation',
@@ -115,6 +117,8 @@ class RuleSet(models.Model):
             'order_purchaseorderattachment',
             'order_purchaseorderlineitem',
             'company_supplierpart',
+            'company_manufacturerpart',
+            'company_manufacturerpartparameter',
         ],
         'sales_order': [
             'company_company',
@@ -272,7 +276,7 @@ def update_group_roles(group, debug=False):
 
     """
 
-    if not canAppAccessDatabase():
+    if not canAppAccessDatabase(allow_test=True):
         return
 
     # List of permissions already associated with this group
diff --git a/RELEASE.md b/RELEASE.md
new file mode 100644
index 0000000000..90fb027a62
--- /dev/null
+++ b/RELEASE.md
@@ -0,0 +1,23 @@
+## Release Checklist
+
+Checklist of steps to perform at each code release
+
+### Update Version String
+
+Update `INVENTREE_SW_VERSION` in [version.py](https://github.com/inventree/InvenTree/blob/master/InvenTree/InvenTree/version.py)
+
+### Increment API Version
+
+If the API has changed, ensure that the API version number is incremented.
+
+### Translation Files
+
+Merge the crowdin translation updates into master branch
+
+### Documentation Release
+
+Create new release for the [inventree documentation](https://github.com/inventree/inventree-docs)
+
+### Python Library Release
+
+Create new release for the [inventree python library](https://github.com/inventree/inventree-python)
diff --git a/docker/Dockerfile b/docker/Dockerfile
index e27bd5591a..72e6acc8ca 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -1,4 +1,4 @@
-FROM python:alpine as base
+FROM alpine:3.13 as base
 
 # GitHub source
 ARG repository="https://github.com/inventree/InvenTree.git"
@@ -57,7 +57,7 @@ RUN apk add --no-cache cairo cairo-dev pango pango-dev
 RUN apk add --no-cache fontconfig ttf-droid ttf-liberation ttf-dejavu ttf-opensans ttf-ubuntu-font-family font-croscore font-noto
 
 # Python
-RUN apk add --no-cache python3 python3-dev
+RUN apk add --no-cache python3 python3-dev py3-pip
 
 # SQLite support
 RUN apk add --no-cache sqlite
diff --git a/docker/start_dev_server.sh b/docker/start_dev_server.sh
index ad12ec023a..fcd178915c 100644
--- a/docker/start_dev_server.sh
+++ b/docker/start_dev_server.sh
@@ -32,7 +32,7 @@ echo "Starting InvenTree server..."
 
 # Wait for the database to be ready
 cd ${INVENTREE_HOME}/InvenTree
-python manage.py wait_for_db
+python3 manage.py wait_for_db
 
 sleep 10
 
@@ -40,10 +40,10 @@ echo "Running InvenTree database migrations..."
 
 # We assume at this stage that the database is up and running
 # Ensure that the database schema are up to date
-python manage.py check || exit 1
-python manage.py migrate --noinput || exit 1
-python manage.py migrate --run-syncdb || exit 1
-python manage.py clearsessions || exit 1
+python3 manage.py check || exit 1
+python3 manage.py migrate --noinput || exit 1
+python3 manage.py migrate --run-syncdb || exit 1
+python3 manage.py clearsessions || exit 1
 
 # Launch a development server
-python manage.py runserver ${INVENTREE_WEB_ADDR}:${INVENTREE_WEB_PORT}
+python3 manage.py runserver ${INVENTREE_WEB_ADDR}:${INVENTREE_WEB_PORT}
diff --git a/docker/start_dev_worker.sh b/docker/start_dev_worker.sh
index bfadc1f49a..7ee59ff28f 100644
--- a/docker/start_dev_worker.sh
+++ b/docker/start_dev_worker.sh
@@ -11,9 +11,9 @@ sleep 5
 
 # Wait for the database to be ready
 cd InvenTree
-python manage.py wait_for_db
+python3 manage.py wait_for_db
 
 sleep 10
 
 # Now we can launch the background worker process
-python manage.py qcluster
+python3 manage.py qcluster
diff --git a/docker/start_prod_server.sh b/docker/start_prod_server.sh
index 9d86b331eb..1bba2c9ed3 100644
--- a/docker/start_prod_server.sh
+++ b/docker/start_prod_server.sh
@@ -23,7 +23,7 @@ echo "Starting InvenTree server..."
 
 # Wait for the database to be ready
 cd $INVENTREE_MNG_DIR
-python manage.py wait_for_db
+python3 manage.py wait_for_db
 
 sleep 10
 
@@ -31,12 +31,12 @@ echo "Running InvenTree database migrations and collecting static files..."
 
 # We assume at this stage that the database is up and running
 # Ensure that the database schema are up to date
-python manage.py check || exit 1
-python manage.py migrate --noinput || exit 1
-python manage.py migrate --run-syncdb || exit 1
-python manage.py prerender || exit 1
-python manage.py collectstatic --noinput || exit 1
-python manage.py clearsessions || exit 1
+python3 manage.py check || exit 1
+python3 manage.py migrate --noinput || exit 1
+python3 manage.py migrate --run-syncdb || exit 1
+python3 manage.py prerender || exit 1
+python3 manage.py collectstatic --noinput || exit 1
+python3 manage.py clearsessions || exit 1
 
 # Now we can launch the server
 gunicorn -c $INVENTREE_HOME/gunicorn.conf.py InvenTree.wsgi -b 0.0.0.0:$INVENTREE_WEB_PORT
\ No newline at end of file
diff --git a/docker/start_prod_worker.sh b/docker/start_prod_worker.sh
index ba9eb14d65..4a13d71230 100644
--- a/docker/start_prod_worker.sh
+++ b/docker/start_prod_worker.sh
@@ -6,9 +6,9 @@ sleep 5
 
 # Wait for the database to be ready
 cd $INVENTREE_MNG_DIR
-python manage.py wait_for_db
+python3 manage.py wait_for_db
 
 sleep 10
 
 # Now we can launch the background worker process
-python manage.py qcluster
\ No newline at end of file
+python3 manage.py qcluster
\ No newline at end of file
diff --git a/tasks.py b/tasks.py
index 5aab30651a..b78a135b08 100644
--- a/tasks.py
+++ b/tasks.py
@@ -129,6 +129,14 @@ def wait(c):
 
     manage(c, "wait_for_db")
 
+@task
+def rebuild(c):
+    """
+    Rebuild database models with MPTT structures
+    """
+
+    manage(c, "rebuild_models")
+
 @task
 def migrate(c):
     """
@@ -243,12 +251,15 @@ def content_excludes():
         "contenttypes",
         "sessions.session",
         "auth.permission",
+        "authtoken.token",
         "error_report.error",
         "admin.logentry",
         "django_q.schedule",
         "django_q.task",
         "django_q.ormq",
         "users.owner",
+        "exchange.rate",
+        "exchange.exchangebackend",
     ]
 
     output = ""
@@ -311,7 +322,7 @@ def export_records(c, filename='data.json'):
     print("Data export completed")
 
 
-@task(help={'filename': 'Input filename'})
+@task(help={'filename': 'Input filename'}, post=[rebuild])
 def import_records(c, filename='data.json'):
     """
     Import database records from a file
@@ -354,7 +365,22 @@ def import_records(c, filename='data.json'):
 
     print("Data import completed")
 
+
 @task
+def delete_data(c, force=False):
+    """
+    Delete all database records!
+
+    Warning: This will REALLY delete all records in the database!!
+    """
+
+    if force:
+        manage(c, 'flush --noinput')
+    else:
+        manage(c, 'flush')
+
+
+@task(post=[rebuild])
 def import_fixtures(c):
     """
     Import fixture data into the database.