This guide applies to Mac computers
Notifications
Notifications for software updates are handled by macOS. A Managed Update notification shows the scheduled date and time for the update. You can install now, schedule for that night, or dismiss and install later. macOS notifies you once per day until the deadline. Within 24 hours of the deadline, notifications appear hourly and are not suppressed by Do Not Disturb. In the final hour, you’re notified at 30 minutes and then every 10 minutes. If the Mac is off when the enforcement deadline passes, the update is scheduled for 60 minutes after it’s powered on and detects it’s past the deadline. The contents and timing of these notifications are determined by the operating system. System Settings > Software Update shows the pending update and your organization’s required date and time. You can start the update from there or wait for it to run automatically at the scheduled time.Related articles
User Experience with Managed OS for iOS, iPadOS and tvOS
What to expect when Managed OS updates run on your device