medusa-store/www/docs/content/modules/multiwarehouse/overview.mdx

---
description: "Multi-warehouse allows merchants to store a product in multiple locations with accurate and consistent inventory data within the commerce application."
---

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# Multi-Warehouse

Multi-warehouse allows merchants to store a product in multiple locations with accurate and consistent inventory data within the commerce application.

Multi-warehouse in Medusa is composed of two modules: an inventory module - which is the NPM package `@medusajs/inventory` - and a stock location module - which is the NPM package `@medusajs/stock-location`.

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You can also create your own modules and use them with the Medusa backend.

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---

## Features

### Multiple Stock Locations

Admins can manage the stock locations, which are the places they store their products. Stock locations are associated with different sales channels.

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### Inventory Management Across Locations

Admins can manage the inventory of product variants across the different stock locations.

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### Manage Item Allocations in Orders

Admins can manage item allocations to choose which stock location to fulfill items from or return items to. Item quantities are reserved in a stock location until the item is fulfilled to ensure data consistency.

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---

## Understanding the Architecture

The commerce modules automatically detect whether a product variant is in stock, decrement the variant’s stock on fulfillment, and increment the variant’s stock on returns.

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---

## Related Modules

Discover Multi-warehouse’s relation to other modules in Medusa.

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