In the study plan in place (legally binding for students matriculated at University of Bern only), it states that one can compensate a grade below 4 if the weighted average for the specific module is at least a 4. There can only be one grade below 4 per module (this does not apply for the module A and B). Besides the compensation, students can re-take the exam once.
For details, please read the study plan (article 10).
Within the CST (KSL) profile, students need to choose if they want to compensate or re-take the exam. If you decide to compensate, you need to manually set this, please see the below attached documentation.
If you decide to re-take it and have a grade lower than 4, this is done automatically.