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# contactIdentifier

The Contacts database identifier for the person.

```
var contactIdentifier: String? { get }
```

## Discussion

> Important:
> When donating instances of ``doc://com.apple.sirikit/documentation/Intents/INSendMessageIntent``, specify a value for this property for each recipient. This enables Siri to choose and interact with the appropriate messaging app when a person asks to send a message.

If your app doesn’t have permission to access the Contacts database, this property returns `nil`. Otherwise, it returns the value you specify when creating the person.

---

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