AAUcard is used by all students and staff as an ID card.
You have to carry the card with you when you navigate the university campus as a student. This is necessary, as the card should always be able to be shown on demand; otherwise you will be asked to leave the building, if you are not able to do so. You also need to use your AAUcard as an ID card for your various exams.
In some instances you may be asked to show documentation as to the card's validity. In order to obtain this, you would need confirmation of enrolment, which can be printed via STADS self-service, or you can create a digital student ID via the app Studiz.
Your AAUcard is personal and you are the only one allowed to use it. It must under no circumstances be given or lent to someone else. If the card is misused, it will be blocked.