Enforcing macOS Platform SSO During Automated Device Enrollment (ADE)
Enforcing macOS Platform SSO During Automated Device Enrollment (ADE) Historically, deploying Apple's Platform Single Sign-On (PSSO) framework via Microsoft Intune resulted in a disjointed post-onboarding experience. Users had to land on the desktop, wait for MDM background sync, launch Company Portal, and manually complete the identity-to-device registration loop. With Microsoft's native integration of Platform SSO registration directly into Setup Assistant during Automated Device Enrollment (ADE) , the identity registration and device-join flow occur natively at boot. Here is the technical architecture, prerequisite stack, and configuration policy logic required to enforce this mechanism. The Mechanics of Setup Assistant Registration When a device is unboxed and initiates Apple ADE, the enrollment flow behaves as follows: Bootstrap Profile Delivery: The Mac reaches out to Apple's activation servers, is handed to Intune, and pulls down the initial MDM bootstrap payload, i...