@STS-Madison Are you using an account created in Apple school manager? If so that is the problem as accoutns created in ASM cannot be used on the Apple sotre.
Check feature availability
Your school or district can use Managed Apple IDs to log in to a Shared iPad and access Apple services. These services include iCloud and Schoolwork, and you can collaborate in Pages, Numbers, and Keynote with other users within your organization. Managed Apple IDs also include 200GB of iCloud storage.
To maintain a focus on education, these services are disabled for Managed Apple IDs:
- App Store purchasing
- iTunes Store purchasing
- Book Store purchasing
- HomeKit connected devices
- Apple Pay
- Find My
- iCloud Mail
- iCloud Keychain (although, keychain items are saved and restored on Shared iPad devices)
- iCloud Family Sharing
Because Managed Apple IDs can't make purchases, administrators assign content to your Managed Apple ID or assigned devices.