Here is a tutorial for those school secretaries or personell who use SchoolMaster and FamilyLink. It will demonstrate how to change the username and password for parents.
Tutorial
1. After being logged into SchoolMaster click on the adults button.
2. Select the Parent's name for which you are changing the password.
3. Click on the "Primary Data" dropdown list and then choose the "FamilyLink" option.
4. From here you can lock an account, or edit the parent's user name and password. If the "Change Password" checkbox is checked then your parents will be forced to change their password once they go to FamilyLink.
That is all there is too it.