We are doing/planning a tenant Migration, and in the old tenant, there are unmanaged devices, what Should be done with those? We know its from students downloading and signing into office products and connecting their email in outlook, and phones. Again they are not managed, No Intune they are just objects in azure AD.
We know they may have to sign back in once they are moved over to the tenant. But Should the devices in the OLD tenant be removed before the migration is complete?
If they are deleted or disabled does that user get a message? I can find the answer if it was managed but in this case they are not.
Thoughts?