---
title: sourceIdentifier
framework: accessorynotifications
role: symbol
role_heading: Instance Property
path: accessorynotifications/notificationresponse/sourceidentifier
---

# sourceIdentifier

A bundle identifier for the app that sent the notification.

## Declaration

```swift
var sourceIdentifier: String
```

## Discussion

Discussion For example, if Messages sends the notification, this value is com.apple.MobileSMS.

## See Also

### Identifying the notification

- [notificationIdentifier](accessorynotifications/notificationresponse/notificationidentifier.md)