ATKGRP015E: An error occurred while trying to add members to the existing group.
Explanation: See message.
Operator Response: For more information, see the file error-log-0.html and search for "AddToExistingGroupUITask". The default location of the log files depends on the operating system that is running on the management console. The following list provides the default location associated with each operating system.
If the problem persists, contact Support.