While importing CM Application, encountered an error message, “Import-CMApplication : Validation of input parameters failed. Cannot continue”. The Import-CmApplication cmdlet only accepts UNC path to the exported .zip file.

This is a generic error for the Import-CMApplication cmdlet, however one of the issues that I faced was the UNC permission error.

Solution: For the user running the cmdlet, the read access to the UNC path must be provided to fix the permission related error.