message: Small fix tu support both add & remove actions.
diff: @@ -229,9 +229,18 @@ export default class AuthorizationService {
  const assetIDs = await AuthorizationService.getAssignedAssetIDs(tenant.id, siteArea.siteID);
  // Check if any of the Assets we want to unassign are missing
  for (const assetID of filteredRequest.assetIDs) {
  + switch (action) {
  + case ServerAction.ADD_CHARGING_STATIONS_TO_SITE_AREA:
  + if (assetIDs.includes(assetID)) {
  + foundInvalidAssetID = true;
  + }
  + break;
  + case ServerAction.REMOVE_CHARGING_STATIONS_FROM_SITE_AREA:
  if (!assetIDs.includes(assetID)) {
  foundInvalidAssetID = true;
  }
  + break;
  + }
  }
  if (!foundInvalidAssetID) {
  authorizationFilters.authorized = true;
  @@ -263,9 +272,18 @@ export default class AuthorizationService {
  const chargingStationIDs = await AuthorizationService.getAssignedChargingStationIDs(tenant.id, siteArea.siteID);
  // Check if any of the Charging Stations we want to unassign are missing
  for (const chargingStationID of filteredRequest.chargingStationIDs) {
  + switch (action) {
  + case ServerAction.ADD_CHARGING_STATIONS_TO_SITE_AREA:
  + if (chargingStationIDs.includes(chargingStationID)) {
  + foundInvalidChargingStationID = true;
  + }
  + break;
  + case ServerAction.REMOVE_CHARGING_STATIONS_FROM_SITE_AREA:
  if (!chargingStationIDs.includes(chargingStationID)) {
  foundInvalidChargingStationID = true;
  }
  + break;
  + }
  }
  if (!foundInvalidChargingStationID) {
  authorizationFilters.authorized = true;
  