Error 21919402 MPN has an invalid value of - But the Item has no MPN
When updating the quantity with the ReviseFixedPriceItem API I am being given an Error 21919402 MPN has an invalid value of (with the EAN number) But the Item has no MPN, it only has an EAN number and the MPN number being shown as invalid is the EAN number What is the cause?
Hi davidmills02, Are you still having trouble with this? If so can you please attach your ReviseFixedPriceItem API request and response so I can troubleshoot. You can also use our knowledge base to try to find the answer,
https://go.developer.ebay.com/knowledge-base. Thanks, eBay Developers Program