---
title: UNNotificationDefaultActionIdentifier
framework: usernotifications
role: symbol
role_heading: Global Variable
path: usernotifications/unnotificationdefaultactionidentifier
---

# UNNotificationDefaultActionIdentifier

An action that indicates the user opened the app from the notification interface.

## Declaration

```swift
let UNNotificationDefaultActionIdentifier: String
```

## Discussion

Discussion The delivery of this action doesn’t require any special configuration of notification categories. Use the userNotificationCenter(_:didReceive:withCompletionHandler:) method of your delegate object to receive this action.

## See Also

### Getting the Response Information

- [actionIdentifier](usernotifications/unnotificationresponse/actionidentifier.md)
- [notification](usernotifications/unnotificationresponse/notification.md)
- [targetScene](usernotifications/unnotificationresponse/targetscene.md)
- [UNNotificationDismissActionIdentifier](usernotifications/unnotificationdismissactionidentifier.md)