How can I define which products go to which supplier?

Ecomdash routes orders to the highest priority warehouse that has available stock for the item ordered. I an item in your inventory is solely supplied by one of your warehouses, make sure that warehouse has quantity or is the priority number one warehouse for that item. If all warehouses are out of stock, ecomdash will always allocate the order to the number 1 priority warehouse. Warehouse Quantity and Warehouse Priority can both be set by following the steps below;

1. Navigate to Inventory > Inventory Management > All Inventory

2. Search for an item and click View next to it

3. Go to it's Inventory tab