The SKU code is required for placing an order if you fulfill your orders by uploading the CSV file.
At BurgerPrints Fulfillment, you have multiple ways to create orders. In which, the most popular way is CSV fulfillment. We will provide you with instructions for placing an order this way and the SKU that identifies each product line.
Contact us by emailing us at sellers@burgerprints.com. In the email please show your order id or purchase email so we can assist you.