diff --git a/InvenTree/InvenTree/settings.py b/InvenTree/InvenTree/settings.py
index 4488233196..21abfb8195 100644
--- a/InvenTree/InvenTree/settings.py
+++ b/InvenTree/InvenTree/settings.py
@@ -46,10 +46,11 @@ INSTALLED_APPS = [
 
     # InvenTree apps
     'part.apps.PartConfig',
-    'project.apps.ProjectConfig',
-    'stock.apps.StockConfig',
+    'bom.apps.BomConfig',
     'supplier.apps.SupplierConfig',
-    'track.apps.TrackConfig'
+    'stock.apps.StockConfig',
+    #'project.apps.ProjectConfig',
+    #'track.apps.TrackConfig',
 ]
 
 MIDDLEWARE = [
diff --git a/InvenTree/InvenTree/urls.py b/InvenTree/InvenTree/urls.py
index 2e808e3945..7038fcbb19 100644
--- a/InvenTree/InvenTree/urls.py
+++ b/InvenTree/InvenTree/urls.py
@@ -3,11 +3,14 @@ from django.contrib import admin
 
 from rest_framework.documentation import include_docs_urls
 
-from part.urls import part_urls, part_cat_urls, part_param_urls, part_param_template_urls
+from part.urls import part_urls, part_cat_urls
+from bom.urls import bom_urls
 from stock.urls import stock_urls, stock_loc_urls
-from project.urls import prj_urls, prj_part_urls, prj_cat_urls, prj_run_urls
 from supplier.urls import cust_urls, manu_urls, supplier_part_urls, price_break_urls, supplier_urls
-from track.urls import unique_urls, part_track_urls
+
+#from project.urls import prj_urls, prj_part_urls, prj_cat_urls, prj_run_urls
+#from track.urls import unique_urls, part_track_urls
+
 from users.urls import user_urls
 
 admin.site.site_header = "InvenTree Admin"
@@ -21,8 +24,11 @@ apipatterns = [
     # Part URLs
     url(r'^part/', include(part_urls)),
     url(r'^part-category/', include(part_cat_urls)),
-    url(r'^part-param/', include(part_param_urls)),
-    url(r'^part-param-template/', include(part_param_template_urls)),
+    #url(r'^part-param/', include(part_param_urls)),
+    #url(r'^part-param-template/', include(part_param_template_urls)),
+
+    # Part BOM URLs
+    url(r'^bom/', include(bom_urls)),
 
     # Supplier URLs
     url(r'^supplier/', include(supplier_urls)),
@@ -32,14 +38,14 @@ apipatterns = [
     url(r'^customer/', include(cust_urls)),
 
     # Tracking URLs
-    url(r'^track/', include(part_track_urls)),
-    url(r'^unique-part/', include(unique_urls)),
+    #url(r'^track/', include(part_track_urls)),
+    #url(r'^unique-part/', include(unique_urls)),
 
     # Project URLs
-    url(r'^project/', include(prj_urls)),
-    url(r'^project-category/', include(prj_cat_urls)),
-    url(r'^project-part/', include(prj_part_urls)),
-    url(r'^project-run/', include(prj_run_urls)),
+    #url(r'^project/', include(prj_urls)),
+    #url(r'^project-category/', include(prj_cat_urls)),
+    #url(r'^project-part/', include(prj_part_urls)),
+    #url(r'^project-run/', include(prj_run_urls)),
 
     # User URLs
     url(r'^user/', include(user_urls)),
diff --git a/InvenTree/bom/__init__.py b/InvenTree/bom/__init__.py
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/InvenTree/bom/admin.py b/InvenTree/bom/admin.py
new file mode 100644
index 0000000000..4c31fcbf5a
--- /dev/null
+++ b/InvenTree/bom/admin.py
@@ -0,0 +1,8 @@
+from django.contrib import admin
+
+from .models import BomItem
+
+class BomItemAdmin(admin.ModelAdmin):
+    list_display=('part', 'sub_part', 'quantity')
+
+admin.site.register(BomItem, BomItemAdmin)
\ No newline at end of file
diff --git a/InvenTree/bom/apps.py b/InvenTree/bom/apps.py
new file mode 100644
index 0000000000..e740d8d611
--- /dev/null
+++ b/InvenTree/bom/apps.py
@@ -0,0 +1,6 @@
+from __future__ import unicode_literals
+
+from django.apps import AppConfig
+
+class BomConfig(AppConfig):
+    name = 'bom'
\ No newline at end of file
diff --git a/InvenTree/bom/models.py b/InvenTree/bom/models.py
new file mode 100644
index 0000000000..67b5a932e0
--- /dev/null
+++ b/InvenTree/bom/models.py
@@ -0,0 +1,37 @@
+from __future__ import unicode_literals
+from django.utils.translation import ugettext as _
+from django.db import models
+from django.db.models import Sum
+from django.core.validators import MinValueValidator
+
+from part.models import Part
+
+class BomItem(models.Model):
+    """ A BomItem links a part to its component items.
+    A part can have a BOM (bill of materials) which defines
+    which parts are required (and in what quatity) to make it
+    """
+
+    # A link to the parent part
+    # Each part will get a reverse lookup field 'bom_items'
+    part = models.ForeignKey(Part, on_delete=models.CASCADE, related_name='bom_items')
+
+    # A link to the child item (sub-part)
+    # Each part will get a reverse lookup field 'used_in'
+    sub_part = models.ForeignKey(Part, on_delete=models.CASCADE, related_name='used_in')
+
+    # Quantity required
+    quantity = models.PositiveIntegerField(default=1, validators=[MinValueValidator(0)])
+
+
+    class Meta:
+        verbose_name = "BOM Item"
+
+        # Prevent duplication of parent/child rows
+        unique_together = ('part', 'sub_part')
+
+    def __str__(self):
+        return "{par} -> {child} ({n})".format(
+            par=self.part.name,
+            child=self.sub_part.name,
+            n=self.quantity)
diff --git a/InvenTree/bom/serializers.py b/InvenTree/bom/serializers.py
new file mode 100644
index 0000000000..925f0f05d4
--- /dev/null
+++ b/InvenTree/bom/serializers.py
@@ -0,0 +1,13 @@
+from rest_framework import serializers
+
+from .models import BomItem
+
+
+class BomItemSerializer(serializers.HyperlinkedModelSerializer):
+
+    class Meta:
+        model = BomItem
+        fields = ('url',
+                  'part',
+                  'sub_part',
+                  'quantity')
\ No newline at end of file
diff --git a/InvenTree/bom/tests.py b/InvenTree/bom/tests.py
new file mode 100644
index 0000000000..5982e6bcd2
--- /dev/null
+++ b/InvenTree/bom/tests.py
@@ -0,0 +1,6 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.test import TestCase
+
+# Create your tests here.
diff --git a/InvenTree/bom/urls.py b/InvenTree/bom/urls.py
new file mode 100644
index 0000000000..495bbe553b
--- /dev/null
+++ b/InvenTree/bom/urls.py
@@ -0,0 +1,12 @@
+from django.conf.urls import url
+
+from . import views
+
+bom_urls = [
+    # Bom Item detail
+    url(r'^(?P<pk>[0-9]+)/?$', views.BomItemDetail.as_view(), name='bomitem-detail'),
+
+    # List of top-level categories
+    url(r'^\?*.*/?$', views.BomItemList.as_view()),
+    url(r'^$', views.BomItemList.as_view())
+]
\ No newline at end of file
diff --git a/InvenTree/bom/views.py b/InvenTree/bom/views.py
new file mode 100644
index 0000000000..dd35ac3f2d
--- /dev/null
+++ b/InvenTree/bom/views.py
@@ -0,0 +1,35 @@
+from django_filters.rest_framework import FilterSet, DjangoFilterBackend
+
+from rest_framework import generics, permissions
+
+from InvenTree.models import FilterChildren
+
+from .models import BomItem
+
+from .serializers import BomItemSerializer
+
+
+class BomItemDetail(generics.RetrieveUpdateDestroyAPIView):
+
+    queryset = BomItem.objects.all()
+    serializer_class = BomItemSerializer
+    permission_classes = (permissions.IsAuthenticatedOrReadOnly,)
+
+
+class BomItemFilter(FilterSet):
+
+    class Meta:
+        model = BomItem
+        fields = ['part', 'sub_part']
+
+
+class BomItemList(generics.ListCreateAPIView):
+
+    #def get_queryset(self):
+    #    params = self.request.
+
+    queryset = BomItem.objects.all()
+    serializer_class = BomItemSerializer
+    permission_classes = (permissions.IsAuthenticatedOrReadOnly,)
+    filter_backends = (DjangoFilterBackend,)
+    filter_class = BomItemFilter
\ No newline at end of file
diff --git a/InvenTree/part/admin.py b/InvenTree/part/admin.py
index dd5ec73763..10b5b0d415 100644
--- a/InvenTree/part/admin.py
+++ b/InvenTree/part/admin.py
@@ -1,7 +1,6 @@
 from django.contrib import admin
 
-from .models import PartCategory, Part, PartParameter, PartParameterTemplate, CategoryParameterLink
-
+from .models import PartCategory, Part
 
 class PartAdmin(admin.ModelAdmin):
 
@@ -12,18 +11,18 @@ class PartCategoryAdmin(admin.ModelAdmin):
 
     list_display = ('name', 'path', 'description')
 
-
+"""
 class ParameterTemplateAdmin(admin.ModelAdmin):
     list_display = ('name', 'units', 'format')
 
 
 class ParameterAdmin(admin.ModelAdmin):
     list_display = ('part', 'template', 'value')
-
+"""
 
 admin.site.register(Part, PartAdmin)
 admin.site.register(PartCategory, PartCategoryAdmin)
 
-admin.site.register(PartParameter, ParameterAdmin)
-admin.site.register(PartParameterTemplate, ParameterTemplateAdmin)
-admin.site.register(CategoryParameterLink)
+#admin.site.register(PartParameter, ParameterAdmin)
+#admin.site.register(PartParameterTemplate, ParameterTemplateAdmin)
+#admin.site.register(CategoryParameterLink)
diff --git a/InvenTree/part/models.py b/InvenTree/part/models.py
index 099d5ab6cd..6c2df81e3e 100644
--- a/InvenTree/part/models.py
+++ b/InvenTree/part/models.py
@@ -21,7 +21,10 @@ class PartCategory(InvenTreeTree):
 
 
 class Part(models.Model):
-    """ Represents a """
+    """ Represents an abstract part
+    Parts can be "stocked" in multiple warehouses,
+    and can be combined to form other parts
+    """
 
     # Short name of the part
     name = models.CharField(max_length=100)
@@ -92,84 +95,4 @@ class Part(models.Model):
         return projects
 
 
-class PartParameterTemplate(models.Model):
-    """ A PartParameterTemplate pre-defines a parameter field,
-    ready to be copied for use with a given Part.
-    A PartParameterTemplate can be optionally associated with a PartCategory
-    """
-    name = models.CharField(max_length=20, unique=True)
-    units = models.CharField(max_length=10, blank=True)
 
-    # Parameter format
-    PARAM_NUMERIC = 10
-    PARAM_TEXT = 20
-    PARAM_BOOL = 30
-
-    PARAM_TYPE_CODES = {
-        PARAM_NUMERIC: _("Numeric"),
-        PARAM_TEXT: _("Text"),
-        PARAM_BOOL: _("Bool")
-    }
-
-    format = models.PositiveIntegerField(
-        default=PARAM_NUMERIC,
-        choices=PARAM_TYPE_CODES.items(),
-        validators=[MinValueValidator(0)])
-
-    def __str__(self):
-        return "{name} ({units})".format(
-            name=self.name,
-            units=self.units)
-
-    class Meta:
-        verbose_name = "Parameter Template"
-        verbose_name_plural = "Parameter Templates"
-
-
-class CategoryParameterLink(models.Model):
-    """ Links a PartParameterTemplate to a PartCategory
-    """
-    category = models.ForeignKey(PartCategory, on_delete=models.CASCADE)
-    template = models.ForeignKey(PartParameterTemplate, on_delete=models.CASCADE)
-
-    def __str__(self):
-        return "{name} - {cat}".format(
-            name=self.template.name,
-            cat=self.category)
-
-    class Meta:
-        verbose_name = "Category Parameter"
-        verbose_name_plural = "Category Parameters"
-        unique_together = ('category', 'template')
-
-
-class PartParameter(models.Model):
-    """ PartParameter is associated with a single part
-    """
-
-    part = models.ForeignKey(Part, on_delete=models.CASCADE, related_name='parameters')
-    template = models.ForeignKey(PartParameterTemplate)
-
-    # Value data
-    value = models.CharField(max_length=50, blank=True)
-    min_value = models.CharField(max_length=50, blank=True)
-    max_value = models.CharField(max_length=50, blank=True)
-
-    def __str__(self):
-        return "{name} : {val}{units}".format(
-            name=self.template.name,
-            val=self.value,
-            units=self.template.units)
-
-    @property
-    def units(self):
-        return self.template.units
-
-    @property
-    def name(self):
-        return self.template.name
-
-    class Meta:
-        verbose_name = "Part Parameter"
-        verbose_name_plural = "Part Parameters"
-        unique_together = ('part', 'template')
diff --git a/InvenTree/part/param_todo.py b/InvenTree/part/param_todo.py
new file mode 100644
index 0000000000..e597bedf57
--- /dev/null
+++ b/InvenTree/part/param_todo.py
@@ -0,0 +1,89 @@
+"""
+TODO - Implement part parameters, and templates
+
+See code below
+"""
+
+
+
+class PartParameterTemplate(models.Model):
+    """ A PartParameterTemplate pre-defines a parameter field,
+    ready to be copied for use with a given Part.
+    A PartParameterTemplate can be optionally associated with a PartCategory
+    """
+    name = models.CharField(max_length=20, unique=True)
+    units = models.CharField(max_length=10, blank=True)
+
+    # Parameter format
+    PARAM_NUMERIC = 10
+    PARAM_TEXT = 20
+    PARAM_BOOL = 30
+
+    PARAM_TYPE_CODES = {
+        PARAM_NUMERIC: _("Numeric"),
+        PARAM_TEXT: _("Text"),
+        PARAM_BOOL: _("Bool")
+    }
+
+    format = models.PositiveIntegerField(
+        default=PARAM_NUMERIC,
+        choices=PARAM_TYPE_CODES.items(),
+        validators=[MinValueValidator(0)])
+
+    def __str__(self):
+        return "{name} ({units})".format(
+            name=self.name,
+            units=self.units)
+
+    class Meta:
+        verbose_name = "Parameter Template"
+        verbose_name_plural = "Parameter Templates"
+
+
+class CategoryParameterLink(models.Model):
+    """ Links a PartParameterTemplate to a PartCategory
+    """
+    category = models.ForeignKey(PartCategory, on_delete=models.CASCADE)
+    template = models.ForeignKey(PartParameterTemplate, on_delete=models.CASCADE)
+
+    def __str__(self):
+        return "{name} - {cat}".format(
+            name=self.template.name,
+            cat=self.category)
+
+    class Meta:
+        verbose_name = "Category Parameter"
+        verbose_name_plural = "Category Parameters"
+        unique_together = ('category', 'template')
+
+
+class PartParameter(models.Model):
+    """ PartParameter is associated with a single part
+    """
+
+    part = models.ForeignKey(Part, on_delete=models.CASCADE, related_name='parameters')
+    template = models.ForeignKey(PartParameterTemplate)
+
+    # Value data
+    value = models.CharField(max_length=50, blank=True)
+    min_value = models.CharField(max_length=50, blank=True)
+    max_value = models.CharField(max_length=50, blank=True)
+
+    def __str__(self):
+        return "{name} : {val}{units}".format(
+            name=self.template.name,
+            val=self.value,
+            units=self.template.units)
+
+    @property
+    def units(self):
+        return self.template.units
+
+    @property
+    def name(self):
+        return self.template.name
+
+    class Meta:
+        verbose_name = "Part Parameter"
+        verbose_name_plural = "Part Parameters"
+        unique_together = ('part', 'template')
diff --git a/InvenTree/part/serializers.py b/InvenTree/part/serializers.py
index 1b4bd9a428..d1ef66f3e2 100644
--- a/InvenTree/part/serializers.py
+++ b/InvenTree/part/serializers.py
@@ -1,11 +1,11 @@
 from rest_framework import serializers
 
-from .models import Part, PartCategory, PartParameter, PartParameterTemplate
-
+from .models import Part, PartCategory
 
+"""
 class PartParameterSerializer(serializers.HyperlinkedModelSerializer):
-    """ Serializer for a PartParameter
-    """
+    " Serializer for a PartParameter
+    "
 
     class Meta:
         model = PartParameter
@@ -15,7 +15,7 @@ class PartParameterSerializer(serializers.HyperlinkedModelSerializer):
                   'name',
                   'value',
                   'units')
-
+"""
 
 class PartSerializer(serializers.HyperlinkedModelSerializer):
     """ Serializer for complete detail information of a part.
@@ -44,7 +44,7 @@ class PartCategorySerializer(serializers.HyperlinkedModelSerializer):
                   'parent',
                   'path')
 
-
+"""
 class PartTemplateSerializer(serializers.HyperlinkedModelSerializer):
 
     class Meta:
@@ -53,3 +53,4 @@ class PartTemplateSerializer(serializers.HyperlinkedModelSerializer):
                   'name',
                   'units',
                   'format')
+"""
\ No newline at end of file
diff --git a/InvenTree/part/urls.py b/InvenTree/part/urls.py
index 1ed26cac2b..9237aa8f51 100644
--- a/InvenTree/part/urls.py
+++ b/InvenTree/part/urls.py
@@ -12,6 +12,17 @@ part_cat_urls = [
     url(r'^$', views.PartCategoryList.as_view())
 ]
 
+part_urls = [
+
+    # Individual part
+    url(r'^(?P<pk>[0-9]+)/?$', views.PartDetail.as_view(), name='part-detail'),
+
+    # List parts with optional filters
+    url(r'^\?.*/?$', views.PartList.as_view()),
+    url(r'^$', views.PartList.as_view()),
+]
+
+"""
 part_param_urls = [
     # Detail of a single part parameter
     url(r'^(?P<pk>[0-9]+)/?$', views.PartParamDetail.as_view(), name='partparameter-detail'),
@@ -29,13 +40,6 @@ part_param_template_urls = [
     url(r'^\?.*/?$', views.PartTemplateList.as_view()),
     url(r'^$', views.PartTemplateList.as_view())
 ]
+"""
 
-part_urls = [
 
-    # Individual part
-    url(r'^(?P<pk>[0-9]+)/?$', views.PartDetail.as_view(), name='part-detail'),
-
-    # List parts with optional filters
-    url(r'^\?.*/?$', views.PartList.as_view()),
-    url(r'^$', views.PartList.as_view()),
-]
diff --git a/InvenTree/part/views.py b/InvenTree/part/views.py
index d2a1e9f55d..54dc39c1a2 100644
--- a/InvenTree/part/views.py
+++ b/InvenTree/part/views.py
@@ -3,11 +3,12 @@ from django_filters.rest_framework import FilterSet, DjangoFilterBackend
 from rest_framework import generics, permissions
 
 from InvenTree.models import FilterChildren
-from .models import PartCategory, Part, PartParameter, PartParameterTemplate
+from .models import PartCategory, Part
+
 from .serializers import PartSerializer
 from .serializers import PartCategorySerializer
-from .serializers import PartParameterSerializer
-from .serializers import PartTemplateSerializer
+#from .serializers import PartParameterSerializer
+#from .serializers import PartTemplateSerializer
 
 
 class PartDetail(generics.RetrieveUpdateDestroyAPIView):
@@ -28,22 +29,22 @@ class PartDetail(generics.RetrieveUpdateDestroyAPIView):
     permission_classes = (permissions.IsAuthenticatedOrReadOnly,)
 
 
+"""
 class PartParamFilter(FilterSet):
 
     class Meta:
         model = PartParameter
         fields = ['part']
 
-
 class PartParamList(generics.ListCreateAPIView):
-    """
+    "
 
     get:
     Return a list of all part parameters (with optional filters)
 
     post:
     Create a new part parameter
-    """
+    ""
 
     queryset = PartParameter.objects.all()
     serializer_class = PartParameterSerializer
@@ -53,7 +54,7 @@ class PartParamList(generics.ListCreateAPIView):
 
 
 class PartParamDetail(generics.RetrieveUpdateDestroyAPIView):
-    """
+    ""
 
     get:
     Detail view of a single PartParameter
@@ -64,12 +65,12 @@ class PartParamDetail(generics.RetrieveUpdateDestroyAPIView):
     delete:
     Remove a PartParameter from the database
 
-    """
+    "
 
     queryset = PartParameter.objects.all()
     serializer_class = PartParameterSerializer
     permission_classes = (permissions.IsAuthenticatedOrReadOnly,)
-
+"""
 
 class PartFilter(FilterSet):
 
@@ -138,8 +139,9 @@ class PartCategoryList(generics.ListCreateAPIView):
     permission_classes = (permissions.IsAuthenticatedOrReadOnly,)
 
 
+"""
 class PartTemplateDetail(generics.RetrieveUpdateDestroyAPIView):
-    """
+    ""
 
     get:
     Return detail on a single PartParameterTemplate object
@@ -150,7 +152,7 @@ class PartTemplateDetail(generics.RetrieveUpdateDestroyAPIView):
     delete:
     Remove a PartParameterTemplate object
 
-    """
+    ""
 
     queryset = PartParameterTemplate.objects.all()
     serializer_class = PartTemplateSerializer
@@ -158,7 +160,7 @@ class PartTemplateDetail(generics.RetrieveUpdateDestroyAPIView):
 
 
 class PartTemplateList(generics.ListCreateAPIView):
-    """
+    ""
 
     get:
     Return a list of all PartParameterTemplate objects
@@ -167,8 +169,10 @@ class PartTemplateList(generics.ListCreateAPIView):
     post:
     Create a new PartParameterTemplate object
 
-    """
+    ""
 
     queryset = PartParameterTemplate.objects.all()
     serializer_class = PartTemplateSerializer
     permission_classes = (permissions.IsAuthenticatedOrReadOnly,)
+
+"""
diff --git a/InvenTree/stock/models.py b/InvenTree/stock/models.py
index ea7cc09c71..005b6aa44a 100644
--- a/InvenTree/stock/models.py
+++ b/InvenTree/stock/models.py
@@ -14,6 +14,8 @@ from datetime import datetime
 
 class StockLocation(InvenTreeTree):
     """ Organization tree for StockItem objects
+    A "StockLocation" can be considered a warehouse, or storage location
+    Stock locations can be heirarchical as required
     """
 
     @property
@@ -36,33 +38,27 @@ class StockItem(models.Model):
     review_needed = models.BooleanField(default=False)
 
     # Stock status types
-    ITEM_IN_STOCK = 10
-    ITEM_INCOMING = 15
-    ITEM_IN_PROGRESS = 20
-    ITEM_COMPLETE = 25
+    ITEM_OK = 10
     ITEM_ATTENTION = 50
     ITEM_DAMAGED = 55
     ITEM_DESTROYED = 60
 
     ITEM_STATUS_CODES = {
-        ITEM_IN_STOCK: _("In stock"),
-        ITEM_INCOMING: _("Incoming"),
-        ITEM_IN_PROGRESS: _("In progress"),
-        ITEM_COMPLETE: _("Complete"),
+        ITEM_OK: _("OK"),
         ITEM_ATTENTION: _("Attention needed"),
         ITEM_DAMAGED: _("Damaged"),
         ITEM_DESTROYED: _("Destroyed")
     }
 
     status = models.PositiveIntegerField(
-        default=ITEM_IN_STOCK,
+        default=ITEM_OK,
         choices=ITEM_STATUS_CODES.items(),
         validators=[MinValueValidator(0)])
 
     notes = models.CharField(max_length=100, blank=True)
 
     # If stock item is incoming, an (optional) ETA field
-    expected_arrival = models.DateField(null=True, blank=True)
+    # expected_arrival = models.DateField(null=True, blank=True)
 
     infinite = models.BooleanField(default=False)
 
diff --git a/InvenTree/supplier/models.py b/InvenTree/supplier/models.py
index 13393bb4ad..31f4c67d98 100644
--- a/InvenTree/supplier/models.py
+++ b/InvenTree/supplier/models.py
@@ -35,7 +35,11 @@ class SupplierPart(models.Model):
     class Meta:
         unique_together = ('part', 'supplier', 'SKU')
 
-    part = models.ForeignKey(Part, null=True, blank=True, on_delete=models.CASCADE)
+    # Link to an actual part
+# The part will have a field 'supplier_parts' which links to the supplier part options
+    part = models.ForeignKey(Part, null=True, blank=True, on_delete=models.CASCADE,
+                             related_name='supplier_parts')
+
     supplier = models.ForeignKey(Supplier, on_delete=models.CASCADE)
     SKU = models.CharField(max_length=100)