Ebay add on a reference to the end of your shipments address line 2 when used with couriers that support their Virtual Tracking Number (VTN) system. This code takes the format of EBAYXXXXXXX (7 Characters following EBAY).

When sending a shipment into Shiptheory, through eBay or through another channel connected to your eBay store, we will automatically detect and take out this Virtual Tracking Number from the address line 2 and send it to the courier in the field it is required to be in.

If you have any queries about this please get in contact with support