Add warning message when uploading file to content onboarding with additional column

How: A customer is consedering using content onboarding to upload data they receive from different suppliers. In the demo today they told me that sometimes the supplier have added a column with information that is not yet included in the set up mapping. It would then be great to get a warning message to alert them that they might want to add this to the mapping.

Why: To make content onboarding even more useful and corresponding to the reality of the work with different suppliers.

For Who: Users that upload data from suppliers.

Impact: The work to incorporate data from suppliers would get even smoother.

Additional context:

Please, add your suggestion and feedback above to add to the insights used by Product team when deciding priorities and direction of the Inriver PIM.