If a user or group name or distinguished name changes in your external directory, you must modify the account on the appliance. You can also change local user accounts or group names on the appliance. For information about editing local accounts, see Managing Local User Accounts.
To edit a user or group
In the AMC, navigate to Security Administration > Users & Groups.
Click the Mapped Accounts tab, and then click the name of the group or user that you want to edit.
The Edit Mapped Account page displays.
Make any edits as needed. If the user or group is in an Active Directory or LDAP realm, you can click Browse and then search for the user.
Click Save.