Enrollment Using Apple Business Manager
Apple Business Manager is a consolidation of Apple Automated Device Enrollment (ADE) and Apple Volume Purchase Program (VPP) portals that has more useful capabilities like device assignment, apps management and more.
The following steps are involved in enrolling bulk Apple devices (iOS/macOS) into SureMDM using Apple's Business Manager:
Another way to install SureMDM Agent without Apple ID is via VPP. The installation steps are mentioned in the below link: