WWDC21 - Add support for real-time ASM/ABM assignment notifications
From What's new in WWDC 2021:
MDM vendors can subscribe to real-time notifications for state changes to assignments, assets, and registered users, so they don’t need to continually request the latest state. The notifications are opt-in, and vendors will receive notifications for just the types they subscribe to in client configuration. Features include:
• Assignment notifications: Notify in real-time exactly what assignments have successfully been performed and to which devices.