When trying to migrate or run a pre-check on a file to Microsoft 365, you receive the following error message:
The file or folder name contains characters (% or #) which are not supported by the destination environment.
All errors ending with -018
SharePoint Online (SharePoint for Microsoft 365) supports the special characters # and % , but Sharegate can only migrate files with these characters from Microsoft 365 when you manually activate this feature.
Follow the instructions to allow special characters for Microsoft 365. Please note that this procedure uses PowerShell and takes several hours to activate in the environment.
Alternatively, if you deactivate this feature, we will automatically replace those characters during the migration.