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# pushToken

The token you use to send ActivityKit push notifications to a Live Activity.

```
var pushToken: Data? { get }
```

## Discussion

The push token for a Live Activity may change over time. Use the [`pushTokenUpdates`](/documentation/ActivityKit/Activity/pushTokenUpdates-swift.property)
asynchronous sequence to receive the updated push token. When you receive an updated push
token, make sure to send it to your server and invalidate the outdated token.

---

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