Depending on the examination regulations, there may be queries for examination dates during module registrations. This is initially not an error, but has been created by the respective departments as a so-called implicit exam registration.

Without selecting an examination date, no module registration is possible.

Please also note that you can only deregister from a module if the registration or deregistration period for exams is active. If you have accidentally registered for a module that works with implicit exam registration, only the Office for Student Affairs can deregister you if the registration/deregistration period for exams is not active.