Change Notifications preferences on Mac
On your Mac, use Notifications System Preferences to specify when you don’t want to be disturbed by notifications, and to control how apps show notifications in Notification Center.
To change these preferences, choose Apple menu > System Preferences, click Notifications & Focus , then click Notifications. Select an app on the left, then view or change settings on the right. The options vary by app.
Select an app in the list to customize the app’s notifications.
Turn notifications on or off for the selected app. When you turn notifications off, the app’s alert style and other notification options are dimmed.
Select a style for the app’s notifications:
Allow critical alerts
Let apps send critical notifications. For example, when you select this option for the Home app, notifications for accessories such as smoke sensors or door locks are always shown, even when a Focus is on.
Allow time sensitive alerts
Let apps send time-sensitive notifications. For example, when you select this option for the Calendar app, notifications for events that require your immediate attention are shown. To show these notifications when a Focus is on, you must also set the option for the Focus in Focus preferences. See Choose which notifications to allow.
Show notifications on lock screen
When you wake your Mac from sleep, show app notifications you received while it was in sleep in the login window. See Put your Mac to sleep or wake it.
Show in Notification Center
List the app’s recent notifications in Notification Center. Notifications older than 7 days aren’t shown.
Badge app icon
Let the app show the number of notifications on its icon in the Dock. For example, Calendar shows a badge on its icon when you receive invitations.
Play sound for notifications
Let the app play notification sounds.
Show a preview in notifications for the app. For example, if you receive an email, a preview of the email is shown in the Mail notification.
Note: If you choose a setting from the “Show previews” pop-up menu at the bottom of the preference pane, it’s applied to all apps.
Choose whether and how the app’s notifications are grouped in Notification Center: