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Install Multi-Warehouse Modules

In this document, you’ll learn how to install multi-warehouse related modules using NPM in the Medusa backend.

You can also install these modules in any NPM project.

Inventory Module

Step 1: Install Inventory Module

To install the Inventory Module, run the following command in the root directory of the Medusa backend:

npm install @medusajs/inventory

Step 2: Add Inventory Module to Configurations

In medusa-config.js, add the inventory module to the exported object under the modules property:

module.exports = {
// ...
modules: {
// ...
inventoryService: {
resolve: "@medusajs/inventory",
},
},
}

Step 3: Run Migrations of Inventory Module

Run the following command to reflect schema changes into your database:

npx @medusajs/medusa-cli migrations run

Step 4: Run Migration Script

After installing the Stock Location module, make sure to run the migration script


Stock Location Module

Step 1: Install Stock Location Module

To install the Stock Location Module, run the following command in the root directory of the Medusa backend:

npm install @medusajs/stock-location

Step 2: Add Stock Location Module to Configurations

In medusa-config.js, add the stock location module to the exported object under the modules property:

module.exports = {
// ...
modules: {
// ...
stockLocationService: {
resolve: "@medusajs/stock-location",
},
},
}

Step 3: Run Migrations of Stock Location Module

Run the following command to reflect schema changes into your database:

npx @medusajs/medusa-cli migrations run

Step 4: Run Migration Script

After installing both modules, make sure to run the migration script


Run Migration Script

After installing both modules, run the following command to migrate current product variant information to fit the schema changes introduced by the modules:

node ./node_modules/@medusajs/medusa/dist/scripts/migrate-inventory-items.js

You can now start the Medusa backend and use the stock location module in your commerce application.

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