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# ExtensionConfigTag

A unique identifier for a specific media service configuration.

```
string ExtensionConfigTag
```

## Discussion

Change this value whenever anything in your service’s [`ExtensionConfig`](/documentation/SiriKitCloudMedia/ExtensionConfig) changes. Don’t include any personally identifiable information in this value and
ensure the value matches the `/["][ -~]{1000}["]/` pattern.

---

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