This is an error occuring when Item Fulfillment is syncing from the NetSuite to eBay.
Import mapping is like
Here two item fulfillment have the same eTail Order Id, Does this cause any error?
But the Tracking numbers are different for both.
Error details( HTTP Response)
<?xml version="1.0" encoding="UTF-8"?>
2023-08-30T13:40:11.136ZFailureShipment tracking number addition failed.Shipment tracking number addition failed due to a system error.2191113ErrorRequestError1323E1289_CORE_APIXO_19220561_R1