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# shouldSendMutableContent

A Boolean value that indicates whether the push notification sets the mutable content flag.

```
var shouldSendMutableContent: Bool { get set }
```

## Discussion

When this property is <doc://com.apple.documentation/documentation/Swift/true>, the server includes the `mutable-content` flag with a value of `1` in the push notification’s payload. When the value is `1`, the system passes the notification to your app extension for modification before delivery.

See <doc://com.apple.documentation/documentation/UserNotifications/generating-a-remote-notification> for more information about the `mutable-content` flag, and <doc://com.apple.documentation/documentation/UserNotifications/modifying-content-in-newly-delivered-notifications> for information about how to modify push notification content in your app extension prior to delivery.

The default value of this property is <doc://com.apple.documentation/documentation/Swift/false>.

---

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