If you are offering 3PL items, it will be your responsibility to manage inventory properly.
1. From your Fulfill Engine Store homepage select to Manage inventory under Store configuration.
2. From the inventory page, go to Purchase orders.
3. On the purchase order page select to +Add.
4. On the add form enter the desired quantities for each SKU and Save.
5. After saving, navigate to the purchase order SKUs page to view what was ordered and export if necessary.