---
title: HKHealthStore.HKUserPreferencesDidChangeMessage
framework: healthkit
role: symbol
role_heading: Structure
path: healthkit/hkhealthstore/hkuserpreferencesdidchangemessage
---

# HKHealthStore.HKUserPreferencesDidChangeMessage

## Declaration

```swift
struct HKUserPreferencesDidChangeMessage
```

## Relationships

### Conforms To

- [NotificationCenter.MainActorMessage](foundation/notificationcenter/mainactormessage.md)
- [SendableMetatype](swift/sendablemetatype.md)