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---
title: Parts
---
## Part
The *Part* is the core element of the InvenTree ecosystem. A Part object is the archetype of any stock item in your inventory. Parts are arranged in heirarchical categories which are used to organise and filter parts by function.
## Part Category
Part categories are very flexible and can be easily arranged to match a particular user requirement. Each part category displays a list of all parts *under* that given category. This means that any part belonging to a particular category, or belonging to a sub-category, will be displayed.
Each part category also shows a list of sub-categories which exist underneath it.
{% with id="part_category", url="part/part_category.png", description="Parts are arranged in categories" %}
{% include 'img.html' %}
{% endwith %}
The category part list provides an overview of each part:
* Part name and description
* Part image thumbnail
* Part category
* Part stock level
The list of parts underneath a given category can be filtered by multiple user-configurable filters, which is especially useful when a large number of parts exist under a certain category.
Clicking on the part name links to the [*Part Detail*](./views.md) view.
## Part Attributes
Each *Part* defined in the database provides a number of different attributes which determine how that part can be used. Configuring these attributes for a given part will impact the available functions that can be perform on (or using) that part).
### Virtual
A *Virtual* part is one which does not physically exist but should still be tracked in the system. This could be a process step, machine time, software license, etc.
### Template
A *Template* part is one which can have *variants* which exist underneath it. [Read further information about template parts here](./template.md).
### Assembly
If a part is designated as an *Assembly* it can be created (or built) from other component parts. As an example, a circuit board assembly is made using multiple electronic components, which are tracked in the system. An *Assembly* Part has a Bill of Materials (BOM) which lists all the required sub-components. [Read further information about BOM management here](../build/bom.md).
### Component
If a part is designated as a *Component* it can be used as a sub-component of an *Assembly*. [Read further information about BOM management here](../build/bom.md)
### Trackable
Trackable parts can be assigned batch numbers or serial numbers which uniquely identify a particular stock item. Trackable parts also provide other features (and restrictions) in the InvenTree ecosystem.
[Read further information about trackable parts here](./trackable.md).
### Purchaseable
If a part is designated as *Purchaseable* it can be purchased from external suppliers. Setting this flag allows parts to be added to [purchase orders](../buy/po.md).
### Salable
If a part is designated as *Salable* it can be sold to external customers. Setting this flag allows parts to be added to sales orders.
### Active
By default, all parts are *Active*. Marking a part as inactive means it is not available for many actions, but the part remains in the database. If a part becomes obsolete, it is recommended that it is marked as inactive, rather than deleting it from the database.
## Part Images
Each part can have an associated image, which is used for display purposes throughout the InvenTree interface. A prominent example is on the part detail page itself:
{% with id="part_image", url="part/part_image_example.png", description="Part image example" %}
{% include 'img.html' %}
{% endwith %}
### Image Thumbnails
Thumbnail images are also used throughout the interface, particularly in table views, to reduce data load on the server. These thumbnail images are generated automatically when a new part image is uploaded.
### Uploading Part Image
#### Web Interface
In the web interface, part images can be uploaded directly from the [part view](./views.md). Hover the mouse cursor over the Part image to reveal multiple options:
{% with id="part_image_uplaod", url="part/part_image_upload.png", description="Upload part image" %}
{% include 'img.html' %}
{% endwith %}
| Action | Description |
| --- | --- |
| Upload new image | Select an image file from your local computer to associate with the selected part |
| Select from existing images | Select an image from a list of part images which already exist in the database |
| Delete image | Remove the associated image from the selected part |
#### API
Image upload is supported via the [InvenTree API](../api/api.md), allowing images to be associated with parts programatically. Further, this means that the [Python interface](../api/python/python.md) also supports image upload.
#### Mobile App
The [InvenTree mobile app](../app/part.md#part-image-view) allows part images to be directly uploaded, either from stored files or integrated camera.
## Part Import
*Parts* can be imported by staff-members on the part-list-view (this feature must be enabled in the part-settings), in the part-settings or on the [admin-page for parts](../settings/import.md) (only accessible if you are also an admin). The first two options provide a multi-stage wizard that enables mapping fields from various spreadsheet or table-data formats while the latter requires a well-formatted file but is much more performant.