We have a custom MDM solution (we are registered as an MDM vendor) and provision the education payload. This is applied to student and teacher devices based on roster information synced from Apple School Manager.
Both student and teacher devices are signed in with their managed Apple ID's on device and the ID's are configured in the education payload as well for each user.
This is working perfectly for classes where teacher and device are in bluetooth range, but there is no option to send invites to remote students (they appear as offline in the class). What is required to allow teachers to run classes with remote devices?