Please do not enroll into your own schools language courses! If you find an interesting language course that is organized by your own university, please enroll with your university’s own enrollment.
The enrollment period is 28.11.-13.12. for 3AMK-schools’ language courses. The enrollment period for Aalto-university’s language courses starts 28.11. and ends one week before the course in question starts.
You can find a lot of important information about the courses from the link in course description.