The user accounts of students registered as non-attending are not valid during their period of absence. You can reactivate your account once your attendance registration has been recorded in Sisu and the term you registered attending for is ongoing.
If you are registered as non-attending, your user account is automatically activated for the time periods when registration for the academic year is open. This is done to enable registering in the Oili service also during your absence. If you register as attending for the next term, the validity of your user account continues automatically after registration.
If you have previously had a University of Helsinki user account, it can be restored if, for example, you pursue open university education after graduation. Accounts can be restored if less than a year has passed since their expiration.
Files and emails associated with user accounts are preserved for one year after the username expires.
Visit the IT Helpdesk website for further information on the expiration of user accounts.