---
title: AVKitMetadataIdentifierServiceIdentifier
framework: AVKit
role: symbol
role_heading: Global Variable
platforms: [tvOS 11.0+]
path: avkit/avkitmetadataidentifierserviceidentifier
---

# AVKitMetadataIdentifierServiceIdentifier

The service identifier published through the Now Playing Info Center.

## Declaration

```swift
let AVKitMetadataIdentifierServiceIdentifier: String
```

## See Also

### Nondisplayed metadata

- [AVKitMetadataIdentifierPlaybackProgress](avkit/avkitmetadataidentifierplaybackprogress.md)
- [AVKitMetadataIdentifierExternalContentIdentifier](avkit/avkitmetadataidentifierexternalcontentidentifier.md)
- [AVKitMetadataIdentifierExternalUserProfileIdentifier](avkit/avkitmetadataidentifierexternaluserprofileidentifier.md)