The user which is trying to take this action has "Manage Internal Users" and "Manage External Users" permission, but not "Manage Users".
3 risposte
I have found the issue/solution. The that I am trying to give access to manage internal users to, all has Delegated Administration in order to allow her to Log in as Users. As per the following Known Issue, the Profiles have to be added to the Delegated Admin configuration.
https://trailblazer.salesforce.com/issues_view?id=a1p30000000T5QbAAK
As soon as I added the Profiles to the Delegated Admin configuration, the Profile field was not greyed out.