if err != nil {
		return updatedAt, err
	}

	sys.notifyForGroup(ctx, group)
	return updatedAt, nil
}

// RemoveUsersFromGroup - remove users from group. If no users are
// given, and the group is empty, deletes the group as well.
func (sys *IAMSys) RemoveUsersFromGroup(ctx context.Context, group string, members []string) (updatedAt time.Time, err error) {
	if !sys.Initialized() {

		}
		gset.Remove(group)
		cache.iamUserGroupMemberships[member] = gset
	}

	cache.updatedAt = time.Now()
	return gi.UpdatedAt, nil
}

// RemoveUsersFromGroup - removes users from group, deleting it if it is empty.
func (store *IAMStoreSys) RemoveUsersFromGroup(ctx context.Context, group string, members []string) (updatedAt time.Time, err error) {
	if group == "" {
		return updatedAt, errInvalidArgument
	}

			writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, errIAMActionNotAllowed), r.URL)
			return
		}
	}

	var updatedAt time.Time
	if updReq.IsRemove {
		updatedAt, err = globalIAMSys.RemoveUsersFromGroup(ctx, updReq.Group, updReq.Members)
	} else {
		// Check if group already exists
		if _, gerr := globalIAMSys.GetGroupDescription(updReq.Group); gerr != nil {