Enabling test ads

This guide explains how to enable test ads in your ads integration. It's important to enable test ads during development so that you can click on them without charging Google advertisers. If you click on too many ads without being in test mode, you risk your account being flagged for invalid activity.

There are two ways to get test ads:

  1. Use one of Google's sample ad units.

  2. Use your own ad unit and enable test devices.


  • Complete Get Started.

  • Import the Google Mobile Ads Unity plugin to your Unity app.

Sample ad units

The quickest way to enable testing is to use Google-provided test ad units. These ad units are not associated with your Ad Manager account, so there's no risk of your account generating invalid traffic when using these ad units.

It is important to note that different Google-provided test ad units should be used depending on the platform. You'll need to use an iOS test ad unit for making test ad requests on iOS and an Android test ad unit for making requests on Android.

Here are sample ad units for each format on both Android and iOS:


Ad format Sample ad unit ID
App open ca-app-pub-3940256099942544/9257395921
Banner ca-app-pub-3940256099942544/6300978111
Interstitial ca-app-pub-3940256099942544/1033173712
Rewarded ca-app-pub-3940256099942544/5224354917
Rewarded Interstitial ca-app-pub-3940256099942544/5354046379
Native ca-app-pub-3940256099942544/2247696110


Ad format Sample ad unit ID
App open ca-app-pub-3940256099942544/5575463023
Banner ca-app-pub-3940256099942544/2934735716
Interstitial ca-app-pub-3940256099942544/4411468910
Rewarded ca-app-pub-3940256099942544/1712485313
Rewarded Interstitial ca-app-pub-3940256099942544/6978759866
Native ca-app-pub-3940256099942544/3986624511

These ad units point to specific test creatives.

Enable test devices

If you want to do more rigorous testing with production-looking ads, you can now configure your device as a test device and use your own ad unit IDs that you've created in the Ad Manager web interface. Test devices can either be added in the web interface or programmatically using the Google Mobile Ads SDK.

Follow the steps below to add your device as a test device.

Add your test device in the Ad Manager web interface

For a simple, non-programmatic way to add a test device and test new or existing app builds, use the Ad Manager web interface.

Add your test device programmatically

If you want to test ads in your app as you're developing, follow the steps below to programmatically register your test device.

  1. Run an app configured with the Mobile Ads SDK and make an ad request using one of the test ad unit IDs listed above. Code listing.

    private void RequestBanner()
        #if UNITY_ANDROID
            string adUnitId = "ca-app-pub-3940256099942544/6300978111";
        #elif UNITY_IPHONE
            string adUnitId = "ca-app-pub-3940256099942544/2934735716";
            string adUnitId = "unexpected_platform";
        // Create a 320x50 banner at the top of the screen.
        bannerView = new BannerView(adUnitId, AdSize.Banner, AdPosition.Top);
        // Create an empty ad request.
        AdRequest request = new AdRequest();
        // Load the banner with the request.
  2. Check the console or logcat output for a message that looks like this:


    I/Ads: Use
      to get test ads on this device.


    <Google> To get test ads on this device, set:
      GADMobileAds.sharedInstance.requestConfiguration.testDeviceIdentifiers =
      @[ @"2077ef9a63d2b398840261c8221a0c9b" ];
  3. Copy your alphanumeric test device ID to your clipboard.

  4. Modify your code to add the test device IDs to your RequestConfiguration.TestDeviceIds list.

    RequestConfiguration requestConfiguration = new RequestConfiguration();
  5. Set requestConfiguration globally to MobileAds.

  6. Re-run your app. If you correctly added your device as a test device, you will see a Test Ad label centered at the top of banner, interstitial, and rewarded ads:

    Ads with this Test Ad label are safe to click. Any requests, impressions, and clicks on test ads do not show up in your account's reports.

  7. Now that your device is registered as a test device, you can begin receiving more realistic test ads by replacing the test adUnitID with your own adUnitID.

Testing with the Unity Editor

Beginning with version 5.4.0, you can test your ads directly in the Unity editor. The editor will add a Prefab image giving a similar experience to how actual ads will behave on a mobile platform.

Testing with mediation

Google's sample ad units only show Google Ads. To test your mediation configuration, you must use the enable test devices approach.

Mediated ads do NOT render a Test Ad label. You are responsible for ensuring that test ads are enabled for each of your mediation networks so these networks don't flag your account for invalid activity. See each network's respective mediation guide for more information.

If you aren't sure whether a mediation ad network adapter supports test ads, it is safest to avoid clicking on ads from that network during development. You can use the MediationAdapterClassName() method on any of the ad formats to figure out which ad network served the current ad.