Error:

- Failure | Error Code 21919303 

Short Message: The item specific Style is missing.

LongMessage: The item specific Style is missing. Add Style to this listing, enter a valid value, and then try again.



Explanation and resolution:
As stated, eBay would require a value for Style for some categories and the above error would be triggered and returned, when there wasn't any value in that field in the Item Specifics section when the item was submitted to the channel or if the value was invalid and in order to bypass the error, a valid value needs to be added in that field and then the item can be re-listed on eBay.