Important! Web store integration is available only for Premium, Professional, or higher-level service plan accounts. If you have a Standard service plan account, you can post back to the eBay marketplace separately. For more information, see Post Back to Online Marketplace Shipments—Standard Accounts Only.
If you have multiple orders for one customer, you can combine orders into one shipping box for shipment to that customer at the same delivery address.
Steps
On the Web Store Orders tab, select more than one order for the same customer at the same delivery address.
While keeping the orders selected, select Order > Ship Together.