All schools and kindergartens have separate Stuudium accounts. To log in here, you need an account for “Saaremaa Gümnaasium”.
If you don’t know whether you already have an account, you can try logging in using your ID card or Smart-ID. You can see all your accounts at ID.ope.ee
If you already have an account, but it doesn’t have access to your child’s info, submit a request here.
Teacher accounts are created by the school. You can then log in using your ID card or Smart-ID.