I want to withdraw a denied exception, how do I do it?

In the application

The Information system Teacher [chosen course] (Students) Registration: grant permission

check the box "show also processed requests" and click on "apply". You will see a list of students who have requested an exception. For students who have an exception denied, check the "cancel rejection" box and save. You can now grant permission to enrol the course again.

1 Option to cancel the granted rejection.