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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

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.

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

void Start()
{
    // Create a ConsentRequestParameters object.
    ConsentRequestParameters request = new ConsentRequestParameters();

    // Check the current consent information status.
    ConsentInformation.Update(request, OnConsentInfoUpdated);
}

void OnConsentInfoUpdated(FormError consentError)
{
    if (consentError != null)
    {
        // Handle the error.
        UnityEngine.Debug.LogError(consentError);
        return;
    }

    // If the error is null, the consent information state was updated.
    // You are now ready to check if a form is available.
}

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 . The Action<FormError> callback is called after the form is dismissed. If consent is not required, the Action<FormError> callback is called immediately.

void Start()
{
    // Create a ConsentRequestParameters object.
    ConsentRequestParameters request = new ConsentRequestParameters();

    // Check the current consent information status.
    ConsentInformation.Update(request, OnConsentInfoUpdated);
}

void OnConsentInfoUpdated(FormError consentError)
{
    if (consentError != null)
    {
        // Handle the error.
        UnityEngine.Debug.LogError(consentError);
        return;
    }
    

    // If the error is null, the consent information state was updated.
    // You are now ready to check if a form is available.
    ConsentForm.LoadAndShowConsentFormIfRequired((FormError formError) =>
    {
        if (formError != null)
        {
            // Consent gathering failed.
            UnityEngine.Debug.LogError(consentError);
            return;
        }

        // Consent has been gathered.
    });
}

If you need to perform any actions after the user has made a choice or dismissed the form, place that logic in the Action<FormError> 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 Update(). 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.

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.

void Start()
{
    // Create a ConsentRequestParameters object.
    ConsentRequestParameters request = new ConsentRequestParameters();

    // Check the current consent information status.
    ConsentInformation.Update(request, OnConsentInfoUpdated);
}

void OnConsentInfoUpdated(FormError consentError)
{
    if (consentError != null)
    {
        // Handle the error.
        UnityEngine.Debug.LogError(consentError);
        return;
    }

    // If the error is null, the consent information state was updated.
    // You are now ready to check if a form is available.
    ConsentForm.LoadAndShowConsentFormIfRequired((FormError formError) =>
    {
        if (formError != null)
        {
            // Consent gathering failed.
            UnityEngine.Debug.LogError(consentError);
            return;
        }

        // Consent has been gathered.
        if (ConsentInformation.CanRequestAds())
        {
            MobileAds.Initialize((InitializationStatus initstatus) =>
            {
              // 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 PrivacyOptionsRequirementStatus 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.

The following example demonstrates how to show the privacy options form from a Button.

[SerializeField, Tooltip("Button to show the privacy options form.")]
private Button _privacyButton;

private void Start()
{
  // Enable the privacy settings button.
  if (_privacyButton != null)
  {
      _privacyButton.onClick.AddListener(UpdatePrivacyButton);
      // Disable the privacy settings button by default.
      _privacyButton.interactable = false;
  }
}

/// <summary>
/// Shows the privacy options form to the user.
/// </summary>
public void ShowPrivacyOptionsForm()
{
    Debug.Log("Showing privacy options form.");

    ConsentForm.ShowPrivacyOptionsForm((FormError showError) =>
    {
        if (showError != null)
        {
            Debug.LogError("Error showing privacy options form with error: " + showError.Message);
        }
        // Enable the privacy settings button.
        if (_privacyButton != null)
        {
            _privacyButton.interactable =
                ConsentInformation.PrivacyOptionsRequirementStatus ==
                PrivacyOptionsRequirementStatus.Required;
        }
    });
}

Testing

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

  1. Call Update().
  2. Check the log output for a message that looks like the one below, which shows you 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 DebugGeography.TestDeviceHashedIds and pass in a list of your test device IDs.

void Start()
{
    var debugSettings = new ConsentDebugSettings
    {
        TestDeviceHashedIds =
        new List<string>
        {
            "TEST-DEVICE-HASHED-ID"
        }
    };

    // Create a ConsentRequestParameters object.
    ConsentRequestParameters request = new ConsentRequestParameters
    {
        ConsentDebugSettings = debugSettings,
    };

    // Check the current consent information status.
    ConsentInformation.Update(request, OnConsentInfoUpdated);
}

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.

void Start()
{
    var debugSettings = new ConsentDebugSettings
    {
        // Geography appears as in EEA for debug devices.
        DebugGeography = DebugGeography.EEA,
        TestDeviceHashedIds = new List<string>
        {
            "TEST-DEVICE-HASHED-ID"
        }
    };

    // Create a ConsentRequestParameters object.
    ConsentRequestParameters request = new ConsentRequestParameters
    {
        ConsentDebugSettings = debugSettings,
    };

    // Check the current consent information status.
    ConsentInformation.Update(request, OnConsentInfoUpdated);
}

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.Reset();