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# Inventory module
The `Inventory` module is part of the new inventory infrastructure,
which replaces the legacy `CatalogInventory` module with new and expanded features and APIs for Inventory Management.
The [Inventory Management overview](https://developer.adobe.com/commerce/webapi/rest/inventory/index.html)
describes the MSI (Multi-Source Inventory) project in more detail.
All Inventory Management modules follow the
[Single Responsibility Principle](https://en.wikipedia.org/wiki/Single_responsibility_principle).
[Inventory management architecture](https://developer.adobe.com/commerce/php/architecture/modules/inventory-management/)
provides additional insight about the overall structure of these modules.
## Installation details
This module is installed as part of Magento Open Source. Unless a custom implementation for `InventoryApi` is provided
by a 3rd-party module, the module cannot be deleted or disabled.
## Extension points and service contracts
Magento does not recommend using or referring to classes and other entities in the `Inventory` module. All public
interfaces and extension points related to this module are located in the `InventoryApi` module.
Use the interfaces and extension points defined in `InventoryApi` to extend this module.