You are creating a protection plan for multiple Mac machines and are looking for the rules to select the source folders.
When the rules are specified manually (like ~/Library, $home/desktop, $user/desktop, /Users/$USER/Desktop, $logname/desktop, /desktop/, or /Users/*/Desktop), backup fails with one of the following messages as the path cannot be resolved:
None of the items selected for the backup were found
Could not resolve the "/Users/*/Desktop/" include rule
The file cannot be found by its path: "/Users/*/Desktop/
Acronis products do not yet support the environment variables in macOS.
select Disks/Volume backup and select the volume or select Files/folders and specify the folder /Users
go to Backup options -> File filter
In Back up only files matching the following criteria section specify the path to folder with a wildcard if needed (e.g. /Users/*/Desktop/):