Manage a person’s user groups
Select the site, open Members → User Groups, and open the group you want to change. Add an existing person or use the invite-by-email option when available. To remove someone, use the group's member controls and confirm the change.
A group can receive several access grants, and a person can belong to several groups. Before removing someone, review the grants shared with the group and any access they receive elsewhere.
Removing a person from one custom group does not delete their account, remove them from every site, or remove access provided by other groups.
Protected default groups have restricted controls. Use site membership and roles for the corresponding membership changes rather than trying to delete a default group.