Hi @Romero Garduño, Javier (NTTDATA)
Great to know that you've already thought of a solution and really appreciate it for your sharing!
By the way, since the Microsoft Q&A community has a policy that "The question author cannot accept their own answer. They can only accept answers by others. You could click the "Accept Answer" button for this summary to close this thread, and this can make it easier for other community member's to see the useful information when reading this thread. And according to the scenario introduced here: Answering your own questions on Microsoft Q&A, I would make a brief summary of this thread:
Unable to modify Meeting Policy in Teams for only a few of users
Issue Symptom: Using the PS command "Grant-CS Team Meeting Policy -Identity" ###"-PolicyName 'Global'"
to assign a policy to a user, only a few users reported an error message: ‘’The user was not provisioned successfully ‘’ and "User can't be granted this policy".
The Solution: Try using the command: Get-CsOnlineUser #### | Grant-CsTeamsMeetingPolicy -PolicyName $null
, the problem is solved.
Thank you for your understanding and patience!