You can only use Suomi.fi to check data recorded about you personally in the Population Information system. It is not possible to check the data of another person (acting on behalf of another person). It is also not possible to grant Suomi.fi e-Authorizations for checking personal data.
If you are your child’s guardian, you can use the Personal data page to view
the name, date of birth and personal identity code of the child as well as the number of guardians
your rights to make decisions concerning the child that have been separately confirmed.
If you are not your child’s guardian, you can use the Personal data page to view
the child’s date of birth
your rights of access to information concerning the child that may have been separately confirmed for you.
If the child is dead, you will also see the child’s date of death. The Population Information System does not contain any data on stillborn children.