Impression-level ad revenue
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When an impression occurs, the Google Mobile Ads SDK provides ad revenue data associated with that impression. You can use the data to calculate a user's lifetime value, or forward the data downstream to other relevant systems.

This guide is intended to help you implement the impression-level ad revenue data capture in your Android app.

Prerequisites

Make sure you have turned on the impression-level ad revenue feature in the AdMob UI.

Import the Google Mobile Ads SDK 21.1.0 or higher.

Complete the Get started guide.
Before you can receive any impression-level ad revenue, you need to implement at least one ad format:

Paid event handler

Each ad format has an OnPaidEventListener. During the lifecycle of an ad event, the Google Mobile Ads SDK monitors impression events and invokes the handler with an earned value.

The following example handles paid events for a rewarded ad:

Kotlin

import com.google.android.gms.ads.rewarded.RewardedAd

class MainActivity : AppCompatActivity() {
  private var rewardedAd: RewardedAd? = null
  private final var TAG = "MainActivity"

  override fun onCreate(savedInstanceState: Bundle?) {
    val adRequest = AdRequest.Builder().build()

    RewardedAd.load(this, "AD_UNIT_ID",
      adRequest, object: RewardedAdLoadCallback() {
        override fun onAdLoaded(ad: RewardedAd) {
          rewardedAd = ad
          // Set paid event listener
          rewardedAd.onPaidEventListener = OnPaidEventListener { adValue ->
            // TODO: Send the impression-level ad revenue information to your preferred
            // analytics server directly within this callback.

            // Extract the impression-level ad revenue data.
            val valueMicros = adValue.valueMicros
            val currencyCode = adValue.currencyCode
            val precision = adValue.precisionType

            // Get the ad unit ID.
            val adUnitId = rewardedAd.adUnitId

            val loadedAdapterResponseInfo = rewardedAd.responseInfo.loadedAdapterResponse
            val adSourceName = loadedAdapterResponseInfo.adSourceName
            val adSourceId = loadedAdapterResponseInfo.adSourceId
            val adSourceInstanceName = loadedAdapterResponseInfo.adSourceInstanceName
            val adSourceInstanceId = loadedAdapterResponseInfo.adSourceInstanceId
            val extras = rewardedAd.responseInfo.responseExtras
            val mediationGroupName = extras.getString("mediation_group_name")
            val mediationABTestName = extras.getString("mediation_ab_test_name")
            val mediationABTestVariant = extras.getString("mediation_ab_test_variant")
          }
        }
    })
  }
}

Java

import com.google.android.gms.ads.rewarded.RewardedAd;

public class MainActivity extends Activity {
  private RewardedAd rewardedAd;
  private final String TAG = "MainActivity";

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    AdRequest adRequest = new AdRequest.Builder().build();

    RewardedAd.load(this, "AD_UNIT_ID",
      adRequest, new RewardedAdLoadCallback(){
        @Override
        public void onAdLoaded(@NonNull RewardedAd ad) {
          rewardedAd = ad;
          // Set paid event listener
          rewardedAd.setOnPaidEventListener(new OnPaidEventListener() {
            @Override
            public void onPaidEvent(AdValue adValue) {
              // TODO: Send the impression-level ad revenue information to your
              //preferred analytics server directly within this callback.

              // Extract the impression-level ad revenue data.
              long valueMicros = adValue.getValueMicros();
              String currencyCode = adValue.getCurrencyCode();
              int precision = adValue.getPrecisionType();

              // Get the ad unit ID.
              String adUnitId = rewardedAd.getAdUnitId();
              
              AdapterResponseInfo loadedAdapterResponseInfo = rewardedAd.getResponseInfo().
                  getLoadedAdapterResponseInfo();
              String adSourceName = loadedAdapterResponseInfo.getAdSourceName();
              String adSourceId = loadedAdapterResponseInfo.getAdSourceId();
              String adSourceInstanceName = loadedAdapterResponseInfo.getAdSourceInstanceName();
              String adSourceInstanceId = loadedAdapterResponseInfo.getAdSourceInstanceId();

              Bundle extras = rewardedAd.getResponseInfo().getResponseExtras();
              String mediationGroupName = extras.getString("mediation_group_name");
              String mediationABTestName = extras.getString("mediation_ab_test_name");
              String mediationABTestVariant = extras.getString("mediation_ab_test_variant");
            }
          });
        }
    });
  }
}

For more information on the winning ad source, see Retrieve information about the ad response.

App Attribution Partners (AAP) integration

For complete details on forwarding ads revenue data to analytics platforms, refer to the partner's guide:

Partner SDK
Adjust
AppsFlyer
Singular
Tenjin

Implementation best practices

Set the listener immediately once you create or get access to the ad object, and definitely before showing the ad. This ensures that you don't miss any paid event callbacks.
Send the impression-level ad revenue information to your preferred analytics server immediately at the time the paid event callback is called. This ensures you don't accidentally drop any callbacks and avoids data discrepancies.

AdValue

AdValue is a class that represents the monetary value earned for an ad, including the value's currency code and its precision type encoded as below.

PrecisionType	Description
`UNKNOWN`	An ad value that's unknown. This gets returned when LTV pingback is enabled but there isn't enough data available.
`ESTIMATED`	An ad value estimated from aggregated data.
`PUBLISHER_PROVIDED`	A publisher provided ad value, such as manual CPMs in a mediation group.
`PRECISE`	The precise value paid for this ad.

In the case of AdMob Mediation, AdMob tries to provide an ESTIMATED value for ad sources that are optimized.

For non-optimized ad sources, or in cases where there aren't enough aggregated data to report a meaningful estimation, the PUBLISHER_PROVIDED value is returned.

Test impressions from Open Bidding

After an impression-level ad revenue event occurs for a bidding ad source through a test request, you receive only the following values:

UNKNOWN: indicates the precision type.

0: indicates the ad value.

Previously, you might have seen the precision type as a value other than UNKNOWN and an ad value more than 0.

For details on sending a test ad request, see Enable test devices.