When validating a Data Import, the validation fails, but no validated file is returned to review exceptions. There are duplicate column headers in the import file.
The failed import should return a validation file indicating there are duplicate columns in the import file. We are currently evaluating this issue and will update this article when we have more information.
To resolve the issue, remove the duplicate column headers from the import file. Alternatively, the Error Code and Status columns may need to be removed if you are using a previously validated file.