if err := store.loadUsers(ctx, regUser, newCache.iamUsersMap); err != nil {
				return err
			}
			bootstrapTraceMsg("loading regular groups")
			if err := store.loadGroups(ctx, newCache.iamGroupsMap); err != nil {
				return err
			}
		}

		bootstrapTraceMsg("loading user policy mapping")
		// load polices mapped to users
		if err := store.loadMappedPolicies(ctx, regUser, false, newCache.iamUserPolicyMap); err != nil {

	updatedAt, addedOrRemoved, effectivePolicies, err = sys.store.PolicyDBUpdate(ctx, userOrGroup, isGroup,
		regUser, r.Policies, isAttach)
	if err != nil {
		return
	}

	// Notify all other MinIO peers to reload policy
	if !sys.HasWatcher() {
		for _, nerr := range globalNotificationSys.LoadPolicyMapping(userOrGroup, regUser, isGroup) {
			if nerr.Err != nil {
				logger.GetReqInfo(ctx).SetTags("peerAddress", nerr.Host.String())

		}
	} else {
		_, err := globalIAMSys.GetGroupDescription(entityName)
		if err != nil {
			writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
			return
		}
	}

	userType := regUser
	if globalIAMSys.GetUsersSysType() == LDAPUsersSysType {
		userType = stsUser

		// Validate that the user or group exists in LDAP and use the normalized
		// form of the entityName (which will be an LDAP DN).

		return np, grid.NewRemoteErr(errors.New("username is missing"))
	}

	temp, err := strconv.ParseBool(mss.Get(peerRESTUserTemp))
	if err != nil {
		return np, grid.NewRemoteErr(err)
	}

	userType := regUser
	if temp {
		userType = stsUser
	}

	if err = globalIAMSys.LoadUser(context.Background(), objAPI, accessKey, userType); err != nil {
		return np, grid.NewRemoteErr(err)
	}

	return
}