Mediation

This guide shows you how to integrate a mediation adapter with your current iOS app and set up additional request parameters.

Prerequisites

Before you can integrate mediation for an ad format, you need to integrate that ad format into your app:

• Banners
• Interstitials
• Rewarded Video
• Native Ads - Custom Rendering

New to mediation? Read:

• Introduction to Mediation

Choosing your mediation networks

Google mediation supports over 30 third-party ad networks. Integrating mediation requires changes in these places:

1. Third-party ad network UI - Sign up for the third-party ad network and create a placement in their front end.
2. Google Ad Manager UI - Modify your Ad Manager yield group to add the ad network as a yield partner. We also recommended that you set up automatic data collection for ad networks that support it.
3. App code - Update your app to include the third-party ad network's SDK, and an adapter library that communicates between Google and the third-party ad network to request and serve ads.

Select an ad network below to get started.

Open source and versioned adapters

If an adapter is labeled with "Open source and versioned" in the above table, it means the adapter source code is open-sourced in Google's GitHub repository, enabling you to debug issues yourself should you choose to do so.

It also means that there are versioned adapter builds in Google's bintray repository, built against a specific version of the third-party ad network SDK. You can also integrate these adapters into your app with a single line change to your app's Podfile. Click on a specific ad network's guide for more details.

Adapter versioning

The adapter versioning scheme for versioned adapters is <third-party SDK version>.<adapter patch version>. For example, if an ad network releases a new SDK version 1.2.3, a new adapter version 1.2.3.0 will be released to Bintray after being tested against that new SDK.

If an adapter needs updating outside the lifecycle of a third-party SDK release, the patch version will increase. A bug fix for adapter version 1.2.3.0 will be released in version 1.2.3.1.

Automatic data collection support

When you configure multiple ad networks for mediation, you have to specify what order to request these networks by setting their respective CPM. This can be difficult to manage, since ad network performance changes over time.

The mediation networks table above uses the following values for Automatic data collection support:

Click on a specific ad network's guide for details on how to configure Automatic data collection for that network.

Custom events

If you're looking for an ad network and don't see it on the list above, you can use custom events to write your own integration with that ad network. See Custom Events for more details on how to create a custom event.

Check the value of adNetworkClassName

Each ad format class has an adNetworkClassName property on the GADResponseInfo object that returns the class name of the ad network that fetched the current ad. This property only has a value once an ad successfully loads.

Here is some sample code that logs the ad network class name for each ad format.

Banner

func adViewDidReceiveAd(_ bannerView: DFPBannerView) {
  print("Banner adapter class name: \(bannerView.responseInfo.adNetworkClassName)")
}

- (void)adViewDidReceiveAd:(DFPBannerView *)bannerView {
  NSLog(@"Banner adapter class name: %@", bannerView.responseInfo.adNetworkClassName);
}

Interstitial

func interstitialDidReceiveAd(_ interstitial: DFPInterstitial) {
  print("Interstitial adapter class name: \(interstitial.responseInfo.adNetworkClassName)")
}

- (void)interstitialDidReceiveAd:(DFPInterstitial *)interstitial {
  NSLog(@"Interstitial adapter class name: %@", interstitial.responseInfo.adNetworkClassName);
}

Native

func adLoader(_ adLoader: GADAdLoader,
              didReceive nativeAd: GADUnifiedNativeAd) {
  print("Native adapter class name: \(nativeAd.responseInfo.adNetworkClassName)")
}

-(void)adLoader:(GADAdLoader *)adLoader
    didReceiveUnifiedNativeAd:(GADUnifiedNativeAd *)nativeAd {
  NSLog(@"Native adapter class name: %@", nativeAd.responseInfo.adNetworkClassName);
}

Refer to Retrieving Information about the Ad Response for details.

Banner ads mediation

Make sure to disable refresh in all third-party ad networks UI for banner ad units used in Ad Manager mediation. This will prevent a double refresh since Ad Manager also triggers a refresh based on your banner ad unit's refresh rate.

Rewarded ads mediation

We recommend that you override all default reward values by setting reward values in the Ad Manager UI. To do this, select the Override reward settings from third-party ad networks when using mediation box so that the reward is consistent across all networks. Some ad networks don't provide a reward value or type at all. By overriding the reward value, the reward is consistent no matter which ad network served the ad.

Refer to set up and traffic rewarded ads for apps for more information.

Native ads mediation

The following are some best practices to consider when implementing native mediation.

Native ad presentation policy

Each ad network has its own policies. When using mediation, it's important to remember that your app still needs to abide by the policies of the mediated network that provided the ad.

Avoid using the GADMultipleAdsAdLoaderOptions class when making requests

Requests for multiple native ads only serve Google ads. The multiple native ads feature does not support mediation.