The Import Issues list, found at the bottom of the Import dialog, lists any issues related to importing Excel values into the Revit element properties.
There are three kinds of import issues:
Error: Excel values will NOT be imported. These issues should be addressed and understood before accepting the import preview. See also Error Issues.
Warning: Excel values will NOT be imported for normal and expected reasons. See also Warning Issues.
Message: Excel values will successfully update Revit element properties. See also Message Issues.
This checkbox toggles the display of non-critical message issues.
Saves a copy of the Import Issues to an Excel spreadsheet.
NOTE: Refer to Bidirectional Parameters for related information.
Thank you for taking time to inform us about a bug or feature request.
If you'd like to upload a file to help explain the issue, you can upload a file to Hightail.