Hi, @Ejohnson32,
Thank you for reaching out to the PowerSchool Community for assistance!
To find information on how existing parent SIS users can add an additional student to their PowerSchool Parent Portal account, you can review the article here: Add a student to Parent Portal Account.
For any further queries feel free to reach out to us.
Saffiya Tasneem
Community Moderator.
Remember to give Kudos to suggestions that help you, If another user helps solve your issue, please select Accept As Solution on their post so others can see the solution, too!