If the device is in use, sign out of iCloud, turn off Find My before erasing the device, and leave the device plugged in while the process completes.
In Apple Configurator for Mac, select one or more devices you want to prepare or Blueprints, then do one of the following:
Click Prepare in the toolbar.
Choose Actions > Prepare.
Control-click the selected devices or Blueprints, then choose Prepare.
The Prepare Assistant appears.
Select Manual Configuration, then add the devices to “Apple School Manager or Apple Business Manager.”
Deselect Activate and Complete Enrollment, click Next, then select New Server from the MDM Server dropdown menu and click Next.
Enter Apple School Manager in the Name field and leave the MDM Server URL unchanged, then click Next.
The URL won’t verify.
Click Next, don’t add a certificate, then click Next.
Do one of the following:
Select your organization
Select New Organization.
Click Next, enter the Managed Apple ID for a user with the role of Administrator, Site Manager (Apple School Manager only), or Device Enrollment Manager, then click Next.
Click Continue to complete the sign in, then select Generate a new supervision identity.
Select which Setup Assistant panes you prefer to skip in Setup Assistant, then click Next.
Select a Wi-Fi configuration profile, then select Next.
To learn how to create a configuration profile, see Create and edit configuration profiles in the Apple Configurator for Mac User Guide.
Authenticate using your macOS administrator user name and password, then click Update Settings.
If prompted, unlock the device.
If prompted that the device is already setup and must be erased, click Erase to continue.
The device is then left at the Setup Assistant, and the user completes the enrollment.
Important: If you intend to use Automated Device Enrollment with manually added devices, don’t proceed with Setup Assistant on the device until the device is assigned to an MDM server in Apple Business Manager. See Assign, reassign, or unassign devices.
