---
title: SKStoreProductParameterAdNetworkVersion
framework: storekit
role: symbol
role_heading: Global Variable
path: storekit/skstoreproductparameteradnetworkversion
---

# SKStoreProductParameterAdNetworkVersion

The key that represents the version of the ad network API.

## Declaration

```swift
let SKStoreProductParameterAdNetworkVersion: String
```

## Mentioned in

Generating the signature to validate StoreKit-rendered ads Identifying the parameters in install-validation postbacks

## Discussion

Discussion The value for this key is an NSString. Set this key to version number “4.0”, “3.0”, “2.2", “2.1", or "2.0". Use the highest available version whenever possible. For version availability, see SKAdNetwork release notes. Ad networks use this key and the other Ad network install-validation keys when signing ads. For more information, see Generating the signature to validate StoreKit-rendered ads.

## See Also

### Required keys for SKAdNetwork 2 and later

- [SKStoreProductParameterAdNetworkSourceAppStoreIdentifier](storekit/skstoreproductparameteradnetworksourceappstoreidentifier.md)