Data validation
If you have enabled the Enable template validations option, the file resulting from this connector will come in a compressed (.zip) file, containing the final template and a report of validation rules violated at the data level.
This report can help you detect the rules you are violating in the result feed you have generated before uploading your data to Amazon MarketPlace.
Note: Activating data validation may slow down the download process of the final data file.
Amazon offers template validation tools as well as customized files.
Tip: As a resource, you can create a template inventory file