20=Revoke authority
Use Revoke authority to remove authorization to perform actions on objects from users.
The RVKMQMAUT command is only available to users in the QMQMADM group. A user in the QMQMADM group removes the authority from other users to perform actions on the IBM MQ objects named in the command either by identifying the users by name, or by revoking authority from all users in *PUBLIC. Parent topic: Work-with-channel choices on IBM i