how to Create a warehouse in d365

 Create a warehouse and assign a name and site

As a warehouse manager in USMF, you need to configure a new warehouse named "MainDC" in Site 1 for use within company USP2.

1. Open Warehouse management > Setup > Warehouse > Warehouses.
2. Select New to create a new warehouse.
3. Type MainDC for the warehouse.
4. Select Site 1 to relate the warehouse to.

The above content is taken from : https://docs.microsoft.com/