As an office 365 admin, i’m able to login to Sketchup for Schools (Web)
If any users try to sign they recieve the following error (although) they’re assigned to the app in Azure)
Need admin approval
SketchUp for Schools
SketchUp for Schools needs permission to access resources in your organization that only an admin can grant. Please ask an admin to grant permission to this app before you can use it.
[Have an admin account? Sign in with that account]
[Return to the application without granting consent]