In connection with the implementation of the Helpdesk module, we have integrated into the system the notification feature. Notifications are primarily generated to be displayed by the system. For example, a user changes department in one of the tickets that is not assigned to them and the ticket owner is notified of that action using a simple, clear message. The owner can receive such notifications via email too. It all depends on the individual settings.
Read more: https://wiki5.ispadmin.eu/en/knowledge-base/helpdesk-notifications-and-user-settings/