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The Google User Messaging Platform (UMP) SDK is a privacy and messaging tool to help you manage privacy choices. For more information, see About Privacy & messaging.

Create a message type

Create user messages with one of the Available user message types under the Privacy & messaging tab of your Ad Manager account. The UMP SDK attempts to display a privacy message created from the Ad Manager Application ID set in your project.

For more details, see About privacy and messaging.

Get the user's consent information

You should request an update of the user's consent information at every app launch, using requestConsentInfoUpdate(). This request checks the following:

• Whether consent is required. For example, consent is required for the first time, or the previous consent decision expired.
• Whether a privacy options entry point is required. Some privacy messages require apps to allow users to modify their privacy options at any time.

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

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

  // Request an update to consent information on every app launch.
  ConsentInformation.instance.requestConsentInfoUpdate(
    params,
    () async {
      // Called when consent information is successfully updated.
    },
    (FormError error) {
      // Called when there's an error updating consent information.
    },
  );
}

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

Load and present the privacy message form

After you have received the most up-to-date consent status, call loadAndShowConsentFormIfRequired() to load any forms required to collect user consent. After loading, the forms present immediately.

Key Point: If no privacy message forms require collection of user consent prior to requesting ads, the callback is invoked immediately.

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

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

  // Request an update to consent information on every app launch.
  ConsentInformation.instance.requestConsentInfoUpdate(
    params,
    () async {
      ConsentForm.loadAndShowConsentFormIfRequired((loadAndShowError) {
        if (loadAndShowError != null) {
          // Consent gathering failed.
        }

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

Privacy options

Some privacy message forms are presented from a publisher-rendered privacy options entry point, letting users manage their privacy options at any time. To learn more about which message your users see at the privacy options entry point, see Available user message types.

Check if a privacy options entry point is required

After you have called requestConsentInfoUpdate(), check getPrivacyOptionsRequirementStatus() to determine if a privacy options entry point is required for your app. If an entry point is required, add a visible and interactable UI element to your app that presents the privacy options form. If a privacy entry point is not required, configure your UI element to be not visible and interactable.

/// Helper variable to determine if the privacy options entry point is required.
Future<bool> isPrivacyOptionsRequired() async {
  return await ConsentInformation.instance
      .getPrivacyOptionsRequirementStatus() ==
      PrivacyOptionsRequirementStatus.required;
}

For the full list of privacy options requirement statuses, see PrivacyOptionsRequirementStatus.

Present the privacy options form

When the user interacts with your element, present the privacy options form:

ConsentForm.showPrivacyOptionsForm((formError) {
  if (formError != null) {
    debugPrint("${formError.errorCode}: ${formError.message}");
  }
});

Request ads with user consent

Before requesting ads, use canRequestAds() to check if you've obtained consent from the user:

await ConsentInformation.instance.canRequestAds()

Listed are the following places to check if you can request ads while gathering consent:

• After the UMP SDK gathers consent in the current session.
• Immediately after you have called requestConsentInfoUpdate(). The UMP SDK might have obtained consent in the previous app session.

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

If an error occurs during the consent gathering process, check if you can request ads. The UMP SDK uses the consent status from the previous app session.

Prevent redundant ad request work

As you check canRequestAds() after gathering consent and after calling requestConsentInfoUpdate(), ensure your logic prevents redundant ad requests that might result in both checks returning true. For example, with a boolean variable.

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 were located in various regions, such as the EEA or UK, using debugGeography. 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

When 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.

Examples on GitHub

See a full example of the UMP SDK integration covered in this page in our Flutter examples.