---
title: developerPostbackURL
framework: storekittest
role: symbol
role_heading: Instance Property
path: storekittest/skadtestsession/developerpostbackurl
---

# developerPostbackURL

The URL that SKAdNetwork computes to send copies of winning postbacks to the advertised app’s developer.

## Declaration

```swift
var developerPostbackURL: URL? { get }
```

## Discussion

Discussion Use this property to view the URL that SKAdNetwork computes to send a copy of the winning postback to the developer. This property has a valid URL only if you specify a valid URL in the NSAdvertisingAttributionReportEndpoint key in your app’s Info.plist. For more information, see Configuring an advertised app. note: The testing environment doesn’t use this URL. SKAdNetwork sends copies of winning postbacks in the production environment only.