---
title: sourceAppSigningIdentifier
framework: networkextension
role: symbol
role_heading: Instance Property
path: networkextension/neflowmetadata/sourceappsigningidentifier
---

# sourceAppSigningIdentifier

A string that contains the signing identifier of the source application.

## Declaration

```swift
var sourceAppSigningIdentifier: String { get }
```

## Discussion

Discussion For all apps that are signed in the standard way using Xcode, this value is identical to the app’s bundle identifier.

## See Also

### Getting source app information

- [sourceAppUniqueIdentifier](networkextension/neflowmetadata/sourceappuniqueidentifier.md)
- [sourceAppAuditToken](networkextension/neflowmetadata/sourceappaudittoken.md)