Mass enrollment into MDM

[MilanVuletic]

Is there a way to enroll multiple phones into the MDM after they have been handed out to a employee?  

[KarstenI]

est way for that is using the Apple Device Enrollment Program (DEP) in case you are talking about iOS devices:

https://documentation.meraki.com/SM/Device_Enrollment/Enrolling_and_Supervising_iOS_Devices_using_Ap...

For Android, there is a specifi setup routine that the user can use.

[Trafoos]

Bulk enrollment is an efficient way to set up a large number of devices to be managed by an MDM server without the need to re-image the devices. In Windows 10 desktop and mobile devices, you can use the Provisioning CSP for bulk enrollment, except for the Azure Active Directory Join (Cloud Domain Join) enrollment scenario.