What is Apple Device Enrollment Program (DEP)?

Before it was replaced with Apple Business Manager, Apple's Device Enrollment Program (DEP) made it easier for businesses to deploy macOS, iOS, and tvOS devices. For example, deploying a device through Apple Business Manager and your Apple MDM solution enables zero-touch deployment, which is automatically applying predefined configurations to devices upon start-up so they can be used right out of the box. As of December 1, 2019, IT administrators can still automatically enroll devices – with no need to physically touch them – they just need to use Apple Business Manager to do it.