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# WKAccessibilityReduceMotionStatusDidChangeNotification

Tells the interface controller that the reduce motion status has changed.

```
extern NSString * const WKAccessibilityReduceMotionStatusDidChangeNotification;
```

## Discussion

Use this notification to customize your application’s user interface for when reduced motion is enabled. You can also use the [`WKAccessibilityIsReduceMotionEnabled()`](/documentation/WatchKit/WKAccessibilityIsReduceMotionEnabled()) function to determine whether reduced motion is enabled.

Observe this notification using the default notification center. This notification doesn’t include a parameter.

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