---
title: snapshotsOutOfSyncReasonKey
framework: avfoundation
role: symbol
role_heading: Type Property
path: avfoundation/avplayeritemintegratedtimeline/snapshotsoutofsyncreasonkey
---

# snapshotsOutOfSyncReasonKey

A key to retrieve the reason for an out-of-sync state notification.

## Declaration

```swift
class let snapshotsOutOfSyncReasonKey: String
```

## See Also

### User-information keys

- [AVPlayerIntegratedTimelineSnapshotsOutOfSyncReason](avfoundation/avplayerintegratedtimelinesnapshotsoutofsyncreason.md)