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# willFinishLaunchingNotification

Posted at the start of the [`finishLaunching()`](/documentation/AppKit/NSApplication/finishLaunching()) method to indicate that the app has completed its initialization process and is about to finish launching.

```
class let willFinishLaunchingNotification: NSNotification.Name
```

## Discussion

The notification object is `NSApp`. This notification doesn’t contain a `userInfo` dictionary.  The system posts this notification on the main actor.

To observe this notification using Swift concurrency, use [`NSApplication.WillFinishLaunchingMessage`](/documentation/AppKit/NSApplication/WillFinishLaunchingMessage).

---

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