Then you should keep a close eye on your AU email. The central international office at AU will host an online pre-departure meeting for students who have been allocated an exchange seat after each application round to inform about the next steps.
After the pre-departure meeting, Aarhus BSS Studies will host a faculty specific info session regarding application for pre-approval of courses. At the meeting it will also be possible to ask questions. Here is the PowerPoint presentation from the latest Pre-departure meeting in English for students going on exchange.