For two days, the utilities of Office365 Admin have no longer been able to act on Exchnage even if they have set the Global Admin permissions.
The only activity done were launched two scripts by Power Shell to add users to the Destubuion Group, using our service user with the same permits.
After successfully performing the script, the email to the user of privileges increased and from that moment the utilities can no longer act as usual.
No privilege has been modified
