In this article it is stated that if customers opt out of notifications, they can opt in again by choosing Requests > Customer notifications menu. The problem is that in our service desk project the customers can't see this menu item (double-checked with a test customer). Is there a settings for this anywhere? I'm a project admin but can't find such a settings in the project settings.
Edit: I just realised the article above is about Data Center and Server. So my question is that if there is a similar option for Service Desk in the Cloud.