The following scenarios are examples of merchants who might find a combined warehouse useful:

  • Amazon sellers using a staging or overflow warehouse before forwarding inventory to an FBA (fulfilled by Amazon)warehouse. In this case, the extra warehouse is set up as an IP warehouse to show stock levels. 
  • Merchants with multiple locations or sales channels who want to see the total demand for products to order from overseas vendors.
  • Stores selling both on their own domain and Amazon that want to see demand for different regions. In this case, Amazon US + Amazon CA + domain.com can be shown together. Then, Amazon GB (showing pan-EU demand) + domain.co.uk can be shown in a different combined warehouse.
  • A merchant selling on their own domain and FBM (Amazon fulfilled by merchant). A combined warehouse is useful when these two sales channels fulfill orders from the same stock in the same physical warehouse. 

Combined warehouses are used for replenishment when you need to know demand from more than one warehouse. You may want to know the total stock amount at more than one location so you don't over-order. 

Conversely, you may need to specify that two 'warehouses' (using Inventory Planner terminology, which can mean two sales channels when selling) use the same stock to fulfill customer orders. A combined warehouse ensures that you're considering all stock you have on hand while not double-counting stock available to different warehouses.

Combined Warehouse Set-up

To set-up your combined warehouse, go to Account > Settings. 

> Connections & Warehouses

First check to see which warehouses are currently enabled. If you need to see demand for a specific location, click the corresponding box in the Enabled column. 

Next click '+ New Combined Warehouse'.

Name your combined warehouse.

Use the + Add Warehouse button to define the locations you want to combine.
 

In the Combine Method column, select how you handle stock. 

Warehouse settings can be configured to:

  • Combine sales, stock, and purchase orders with another warehouses. Sales history (units sold), stock, and purchase order quantities will be summed up with other warehouses.
  • Combine sales, ignore stock and purchase order for a warehouse. Unique products in this warehouse won't appear in the combined one. Select this option when fulfilling more than one 'warehouse' from the same stock. This ensures that stock will not be double-counted when calculating replenishment recommendations.
  • Combine sales, share stock and purchase orders with another warehouse. Sales history (units sold is combined). The stock will be taken from the shared warehouse if any, otherwise it's taken from the current warehouse. Then the stock is combined with other locations. Purchase orders will be combined using the same logic as shared stock. 
  • Combine purchase orders and stock, ignore sales. Select this option when integrating with a warehouse management system that supplies accurate stock information but not sales order history. For example, if sales history is supplied by Shopify, but accurate stock information is supplied by an integration with ShipHero, then select this option for your combined warehouse.
  • Combine purchase orders, ignore sales and stock. Select this option to strictly focus on incorporating purchase orders from an additional location (no sales or stock information), so that "on order" quantities remain accurate.

Finally, click Save Changes. 

Learn more about setting up lead time and days of stock for your combined warehouse.

When creating a purchase order using a combined warehouse for forecasting and replenishment calculation purposes, you will need to select a different warehouse as the destination warehouse. The combined warehouse is a 'virtual warehouse' whereas the destination warehouse specifies a physical warehouse where inventory will be received. 

Learn more about receiving a purchase order. 

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