Intro to MDM servers in Apple Business Essentials
Devices added to an organisation at the time of purchase or through Apple Configurator can be assigned to a mobile device management (MDM) solution (called an MDM Server in Apple Business Manager) and organisations can have multiple MDM servers.
Assigning a device to an MDM server is a setting that’s applied the next time a device or devices go through Setup Assistant. Those devices use Automated Device Enrolment, allowing the device to be enrolled into management during initial setup. Assigning an MDM server doesn’t affect a current enrolment of a device.