dear team, from now on we are also using constants in the "AllHistoryActions" model to define the action keys, for example: const ACTION_KEY_CUSTOMER_HIDDEN = 'customer_hidden'; so we can use it in the code for example when we need the action id Trav_History_Helper::getActionId(AllHistoryActions::ACTION_KEY_CUSTOMER_HIDDEN) or in this way: if ($actionKey == AllHistoryActions::ACTION_KEY_CUSTOMER_HIDDEN) {     ...blubber } greetings Dennis