When a CSV contact file is updated, and there is a problem with the CSV file formatting, it would be very helpful for the customer to see WHY the fail occurred.
A customer was facing this problem with a failed CSV import, and it took quite a while for our support team to advise as to what the problem was.
There is a separate effort happening that will identify all formatting requirements for CSV files, to be used in a support article for reference, but this ask is around providing messaging to customers in the UI that points to the reasoning behind the failed import.
Example error message we could provide in a failure message:
"Import Failed - Extra spaces in Header Row"
