# InventorySales module The `InventorySales` module integrates Inventory Management business logic into Magento's sales logic. This module is part of the new inventory infrastructure. The [Inventory Management overview](https://devdocs.magento.com/guides/v2.3/inventory/index.html) describes the MSI (Multi-Source Inventory) project in more detail. ## Installation details This module is installed as part of Magento Open Source. Unless a custom implementation for `InventorySalesApi` is provided by a 3rd-party module, the module cannot be deleted or disabled. ## Extension points and service contracts All public interfaces related to this module are located in the `InventorySalesApi` module. Use the interfaces defined in `InventorySalesApi` to extend this module.