A group labeled Unassigned is included by default as a member of the top-level group (Users). The Unassigned group holds users and groups that have been removed from all other groups.

The Unassigned group is a system group and thus you cannot rename it, move it, delete it, or make it a member of another group. You cannot manually add or remove users or groups. You can reassign the users or groups in the same way that you assign users and groups to other groups. (For more information, see Creating a New User or Editing User Details and Creating a New Group or Editing Group Details.) After you reassign the users or groups, they are removed from the Unassigned group.

If a group is moved to the Unassigned group, the group and its members are moved to the Unassigned group. Members of this group can be members of other groups. In other words, only the group is unassigned.