I am trying to create a flow process to automate creating CSV files which contains the student, teacher assignment, submissions, and submission outcomes. I have registered an app in Azure AD and I can connect to this fine via PowerShell with delegate permissions and see all of the data I need.
However, when I try to connect with application permissions EduAdministration.Read.All, EduAssignments.Read.All and EduRoster.Read.All, I can only see basic Class and Student information. So calling https://graph.microsoft.com/v1.0/education/classes works but calling https://graph.microsoft.com/v1.0/education/classes/CLASSID/assignments does not (I get a "Resource not found for the segment 'assignments'").
As I have an admin account which is a member of the CLASSID team, I can see all of this information if running from graph explorer with delegated permissions.
So, is there something else I need to do to get the application .Read.All permissions working or are there a tutorial of how to connect to graphs with Flow using delegated permissions?