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# notificationIdentifiers

The notification identifiers to locate in your search.

```
var notificationIdentifiers: [String]? { get }
```

## Discussion

When this property contains one or more <doc://com.apple.documentation/documentation/Foundation/NSString> objects, your search should return <doc://com.apple.documentation/documentation/UserNotifications/UNNotification> objects whose IDs match the specified strings. The <doc://com.apple.documentation/documentation/UserNotifications/UNNotificationRequest> object, which is part of the notification, stores the notification’s identifier. You can use these identifiers to search your app’s delivered local and remote notifications.

The value of the [`notificationIdentifiersOperator`](/documentation/Intents/INSearchForMessagesIntent/notificationIdentifiersOperator) property determines whether searches should be for all, some, or none of the specified notification identifiers.

---

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