Get started

Under the Google EU User Consent Policy, you must make certain disclosures to your users in the European Economic Area (EEA) along with the UK and obtain their consent to use cookies or other local storage, where legally required, and to use personal data (such as AdID) to serve ads. This policy reflects the requirements of the EU ePrivacy Directive and the General Data Protection Regulation (GDPR).

To support publishers in meeting their duties under this policy, Google offers the User Messaging Platform (UMP) SDK. The UMP SDK has been updated to support the latest IAB standards. All of these configurations can now conveniently be handled in AdMob privacy & messaging.

Prerequisites

• Complete the Get Started guide

• If you're working on GDPR-related requirements, read How IAB requirements affect EU consent messages

Create a message type

Create user messages with one of the available user message types under the Privacy & messaging tab of your AdMob account. The UMP SDK attempts to display a user message created from the AdMob Application ID set in your project. If no message is configured for your application, the SDK returns an error.

For more details, see About privacy and messaging.

Request for consent information

You should request an update of the user's consent information at every app launch, using requestConsentInfoUpdate(). This determines whether your user needs to provide consent if they haven't done so already, or if their consent has expired.

Here is an example of how to check the status on app start:

@override
void initState() {
  super.initState();

  // Create a ConsentRequestParameters object.
  final params = ConsentRequestParameters();

  // Request an update for the consent information.
  ConsentInformation.instance.requestConsentInfoUpdate(
    params,
    () async {
      // TODO: Load and present the consent form.
    },
    (FormError error) {
      // Handle the error.
    },
  );
}

Warning: Using other ways of checking consent status, such as the cache on your app or a previously saved consent string, could lead to a TCF 3.3 error if consent is expired.

Load and show a consent form if required

Important: The following APIs are compatible with UMP SDK version 2.1.0 or higher.

After you have received the most up-to-date consent status, call loadAndShowConsentFormIfRequired() on the ConsentForm class to load a consent form. If the consent status is required, the SDK loads a form and immediately presents it from the provided . The callback is called after the form is dismissed. If consent is not required, the callback is called immediately.

@override
void initState() {
  super.initState();

  // Create a ConsentRequestParameters object.
  final params = ConsentRequestParameters();

  // Request an update for the consent information.
  ConsentInformation.instance.requestConsentInfoUpdate(
    params,
    () async {
      ConsentForm.loadAndShowConsentFormIfRequired((loadAndShowError) {
        if (loadAndShowError != null) {
          // Consent gathering failed.
        }

        // Consent has been gathered.
      });
    },
    (FormError error) {
      // Handle the error.
    },
  );
}

If you need to perform any actions after the user has made a choice or dismissed the form, place that logic in the callback for your form.

Request ads

Before requesting ads in your app, check if you have obtained consent from the user using canRequestAds(). There are two places to check while gathering consent:

1. Once consent has been gathered in the current session.
2. Immediately after you have called requestConsentInfoUpdate(). It is possible consent has been obtained in the previous session. As a latency best practice, we recommend not waiting for the callback to complete so you can start loading ads as soon as possible after your app launches.

Note: canRequestAds() always returns false until you have called requestConsentInfoUpdate()

If an error occurs during the consent gathering process, you should still attempt to request ads. The UMP SDK uses the consent status from the previous session.

class AppExampleState extends State<AppExample> {

  // Use a bool to initialize the Mobile Ads SDK and load ads once.
  var _isMobileAdsInitializeCalled = false;

  @override
  void initState() {
    super.initState();

    // Create a ConsentRequestParameters object.
    final params = ConsentRequestParameters();

    // Request an update for the consent information.
    ConsentInformation.instance.requestConsentInfoUpdate(
      params,
      () async {
        ConsentForm.loadAndShowConsentFormIfRequired((loadAndShowError) {
          if (loadAndShowError != null) {
            // Consent gathering failed.
          }

          // Consent has been gathered.
          _initializeMobileAdsSDK();
        });
      },
      (FormError error) {
        // Handle the error.
      },
    );

    // Check if you can initialize the Mobile Ads SDK in parallel while
    // checking for new consent information. Consent obtained in the
    // previous session can be used to request ads.
    _initializeMobileAdsSDK();
  }

  void _initializeMobileAdsSDK() async {
    if (_isMobileAdsInitializeCalled) {
      return;
    }

    // Initialize the Mobile Ads SDK if the SDK has gathered consent aligned with
    // the app's configured messages.
    var canRequestAds = await ConsentInformation.instance.canRequestAds();
    if (canRequestAds) {
      setState(() {
        _isMobileAdsInitializeCalled = true;
      });

      // Initialize the Mobile Ads SDK.
      MobileAds.instance.initialize();

      // TODO: Request an ad.
    }
  }
}

Privacy options

Some consent forms require the user to modify their consent at any time. Adhere to the following steps to implement a privacy options button if required.

To accomplish this:

1. Implement a UI element, such as a button in your app's settings page, that can trigger a privacy options form.
2. Once loadAndShowConsentFormIfRequired() completes, check getPrivacyOptionsRequirementStatus() to determine whether to display the UI element that can present the privacy options form.
3. When a user interacts with your UI element, call showPrivacyOptionsForm() to show the form so the user can update their privacy options at any time.

class AppExampleState extends State<AppExample> {
  static const _privacySettingsText = 'Privacy Settings';

  // Use a bool to initialize the Mobile Ads SDK and load ads once.
  var _isMobileAdsInitializeCalled = false;

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'App Example',
      home: Scaffold(
          appBar: AppBar(
            title: const Text('App Example'),
            actions: _isMobileAdsSDKInitialized
                // Regenerate the options menu to include a privacy setting.
                ? _privacySettingsAppBarAction()
                : null
          ),
          body: // ...
      ),
    );
  }

  List<Widget> _privacySettingsAppBarAction() {
    return <Widget>[
      FutureBuilder(
          future: ConsentInformation.instance.isPrivacyOptionsRequired(),
          builder: (context, snapshot) {
            final bool visibility = snapshot.data ?? false;
            return Visibility(
                visible: visibility,
                child: PopupMenuButton<String>(
                  onSelected: (String result) {
                    if (result == _privacySettingsText) {
                      ConsentForm.showPrivacyOptionsForm((formError) {
                        if (formError != null) {
                          debugPrint(
                              "${formError.errorCode}: ${formError.message}");
                        }
                      });
                    }
                  },
                  itemBuilder: (BuildContext context) =>
                      <PopupMenuEntry<String>>[
                    const PopupMenuItem<String>(
                        value: _privacySettingsText,
                        child: Text(_privacySettingsText))
                  ],
                ));
          })
    ];
  }
}

Testing

If you want to test the integration in your app as you're developing, follow these steps to programmatically register your test device. Be sure to remove the code that sets these test device IDs before you release your app.

1. Call requestConsentInfoUpdate().

2. Check the log output for a message similar to the following example, which shows your device ID and how to add it as a test device:

   Android

   Use new ConsentDebugSettings.Builder().addTestDeviceHashedId("33BE2250B43518CCDA7DE426D04EE231")
   to set this as a debug device.
   

   iOS

   <UMP SDK>To enable debug mode for this device,
   set: UMPDebugSettings.testDeviceIdentifiers = @[2077ef9a63d2b398840261c8221a0c9b]
   

3. Copy your test device ID to your clipboard.

4. Modify your code to call ConsentDebugSettings.testIdentifiers and pass in a list of your test device IDs.

   ConsentDebugSettings debugSettings = ConsentDebugSettings(
     testIdentifiers: ["TEST-DEVICE-HASHED-ID"],
   );
   
   ConsentRequestParameters params =
       ConsentRequestParameters(consentDebugSettings: debugSettings);
   
   ConsentInformation.instance.requestConsentInfoUpdate(params, () async {
     // ...
   };
   

Force a geography

The UMP SDK provides a way to test your app's behavior as though the device was located in the EEA or UK using the DebugGeography field on ConsentDebugSettings. Note that debug settings only work on test devices.

ConsentDebugSettings debugSettings = ConsentDebugSettings(
  debugGeography: DebugGeography.debugGeographyEea,
  testIdentifiers: ["TEST-DEVICE-HASHED-ID"],
);

ConsentRequestParameters params =
    ConsentRequestParameters(consentDebugSettings: debugSettings);

ConsentInformation.instance.requestConsentInfoUpdate(params, () async {
  // ...
};

Reset consent state

In testing your app with the UMP SDK, you might find it helpful to reset the state of the SDK so that you can simulate a user's first install experience. The SDK provides the reset() method to do this.

ConsentInformation.instance.reset();

Caution: This method is intended to be used for testing purposes only. You shouldn't call reset() in production code.