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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 Ad Manager 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 Ad Manager account. The UMP SDK attempts to display a user message created from the Ad Manager 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.

Import the SDK

CocoaPods (preferred)

The easiest way to import the SDK into an iOS project is to use CocoaPods. Open your project's Podfile and add this line to your app's target:

pod 'GoogleUserMessagingPlatform'

Then, run the following command:

pod install --repo-update

If you're new to CocoaPods, see Using CocoaPods for details on how to create and use Podfiles.

Swift Package Manager

The UMP SDK also supports the Swift Package Manager. Follow these steps to import the Swift package.

  1. In Xcode, install the UMP SDK Swift Package by navigating to File > Add Packages....

  2. In the prompt that appears, search for the UMP SDK Swift Package GitHub repository:

    https://github.com/googleads/swift-package-manager-google-user-messaging-platform.git
    
  3. Select the version of the UMP SDK Swift Package you want to use. For new projects, we recommend using the Up to Next Major Version.

Xcode then resolves your package dependencies and downloads them in the background. For more details on how to add package dependencies, see Apple's article.

Manual download

The other way of importing the SDK is doing it manually.

Download the SDK

Then, drag the framework into your Xcode project, ensuring you select Copy items if needed.

You can then include the framework in any file you need using:

Swift

import UserMessagingPlatform

Objective-C

#include <UserMessagingPlatform/UserMessagingPlatform.h>

You should request an update of the user's consent information at every app launch, using requestConsentInfoUpdateWithParameters:completionHandler:. 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 from a UIViewController in the viewDidLoad() method.

Swift

override func viewDidLoad() {
  super.viewDidLoad()

  // Request an update for the consent information.
  UMPConsentInformation.sharedInstance.requestConsentInfoUpdate(with: nil) {
    [weak self] requestConsentError in
    guard let self else { return }

    if let consentError = requestConsentError {
      // Consent gathering failed.
      return print("Error: \(consentError.localizedDescription)")
    }

    // TODO: Load and present the consent form.
  }
}

Objective-C

- (void)viewDidLoad {
  [super viewDidLoad];

  // Request an update for the consent information.
  [UMPConsentInformation.sharedInstance
      requestConsentInfoUpdateWithParameters:nil
          completionHandler:^(NSError *_Nullable requestConsentError) {
            if (requestConsentError) {
              // Consent gathering failed.
              NSLog(@"Error: %@", requestConsentError.localizedDescription);
              return;
            }

            // TODO: Load and present the consent form.
          }];
}

Load and present 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 loadAndPresentIfRequiredFromViewController:completionHandler: on the UMPConsentForm class to load a consent form. If the consent status is required, the SDK loads a form and immediately presents it from the provided view controller. The completion handler is called after the form is dismissed. If consent is not required, the completion handler is called immediately.

Swift

override func viewDidLoad() {
  super.viewDidLoad()

  // Request an update for the consent information.
  UMPConsentInformation.sharedInstance.requestConsentInfoUpdate(with: nil) {
    [weak self] requestConsentError in
    guard let self else { return }

    if let consentError = requestConsentError {
      // Consent gathering failed.
      return print("Error: \(consentError.localizedDescription)")
    }

    UMPConsentForm.loadAndPresentIfRequired(from: self) {
      [weak self] loadAndPresentError in
      guard let self else { return }

      if let consentError = loadAndPresentError {
        // Consent gathering failed.
        return print("Error: \(consentError.localizedDescription)")
      }

      // Consent has been gathered.
    }
  }
}

Objective-C

- (void)viewDidLoad {
  [super viewDidLoad];

  __weak __typeof__(self) weakSelf = self;
  // Request an update for the consent information.
  [UMPConsentInformation.sharedInstance
      requestConsentInfoUpdateWithParameters:nil
          completionHandler:^(NSError *_Nullable requestConsentError) {
            if (requestConsentError) {
              // Consent gathering failed.
              NSLog(@"Error: %@", requestConsentError.localizedDescription);
              return;
            }

            __strong __typeof__(self) strongSelf = weakSelf;
            if (!strongSelf) {
              return;
            }

            [UMPConsentForm loadAndPresentIfRequiredFromViewController:strongSelf
                completionHandler:^(NSError *loadAndPresentError) {
                  if (loadAndPresentError) {
                    // Consent gathering failed.
                    NSLog(@"Error: %@", loadAndPresentError.localizedDescription);
                    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 completion handler for your form.

Request ads

Before requesting ads in your app, check if you have obtained consent from the user using UMPConsentInformation.sharedInstance.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 requestConsentInfoUpdateWithParameters:completionHandler:. 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.

Swift

class ViewController: UIViewController {

  // Use a boolean to initialize the Google Mobile Ads SDK and load ads once.
  private var isMobileAdsStartCalled = false

  override func viewDidLoad() {
    super.viewDidLoad()

    // Request an update for the consent information.
    UMPConsentInformation.sharedInstance.requestConsentInfoUpdate(with: nil) {
      [weak self] requestConsentError in
      guard let self else { return }

      if let consentError = requestConsentError {
        // Consent gathering failed.
        return print("Error: \(consentError.localizedDescription)")
      }

      UMPConsentForm.loadAndPresentIfRequired(from: self) {
        [weak self] loadAndPresentError in
        guard let self else { return }

        if let consentError = loadAndPresentError {
          // Consent gathering failed.
          return print("Error: \(consentError.localizedDescription)")
        }

        // Consent has been gathered.
        if UMPConsentInformation.sharedInstance.canRequestAds {
          self.startGoogleMobileAdsSDK()
        }
      }
    }
    
    // Check if you can initialize the Google Mobile Ads SDK in parallel
    // while checking for new consent information. Consent obtained in
    // the previous session can be used to request ads.
    if UMPConsentInformation.sharedInstance.canRequestAds {
      startGoogleMobileAdsSDK()
    }
  }
  
  private func startGoogleMobileAdsSDK() {
    DispatchQueue.main.async {
      guard !self.isMobileAdsStartCalled else { return }

      self.isMobileAdsStartCalled = true

      // Initialize the Google Mobile Ads SDK.
      GADMobileAds.sharedInstance().start()

      // TODO: Request an ad.
      // GADInterstitialAd.load(...)
    }
  }
}

Objective-C

@implementation ViewController

- (void)viewDidLoad {
  [super viewDidLoad];

  __weak __typeof__(self) weakSelf = self;
  // Request an update for the consent information.
  [UMPConsentInformation.sharedInstance
      requestConsentInfoUpdateWithParameters:nil
          completionHandler:^(NSError *_Nullable requestConsentError) {
            if (requestConsentError) {
              // Consent gathering failed.
              NSLog(@"Error: %@", requestConsentError.localizedDescription);
              return;
            }
            __strong __typeof__(self) strongSelf = weakSelf;
            if (!strongSelf) {
              return;
            }

            [UMPConsentForm loadAndPresentIfRequiredFromViewController:strongSelf
                completionHandler:^(NSError *loadAndPresentError) {
                  if (loadAndPresentError) {
                    // Consent gathering failed.
                    NSLog(@"Error: %@", loadAndPresentError.localizedDescription);
                    return;
                  }

                  // Consent has been gathered.
                  __strong __typeof__(self) strongSelf = weakSelf;
                  if (!strongSelf) {
                    return;
                  }

                  if (UMPConsentInformation.sharedInstance.canRequestAds) {
                    [strongSelf startGoogleMobileAdsSDK];
                  }
                }];
          }];

  // Check if you can initialize the Google Mobile Ads SDK in parallel
  // while checking for new consent information. Consent obtained in
  // the previous session can be used to request ads.
  if (UMPConsentInformation.sharedInstance.canRequestAds) {
    [self startGoogleMobileAdsSDK];
  }
}

- (void)startGoogleMobileAdsSDK {
  static dispatch_once_t onceToken;
  dispatch_once(&onceToken, ^{
    // Initialize the Google Mobile Ads SDK.
    [GADMobileAds.sharedInstance startWithCompletionHandler:nil];

    // TODO: Request an ad.
    // [GADInterstitialAd loadWithAdUnitID...];
  });
}

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 loadAndPresentIfRequiredFromViewController:completionHandler: 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 presentPrivacyOptionsFormFromViewController:completionHandler: to show the form so the user can update their privacy options at any time.

The following example shows how to present the privacy options form from a UIBarButtonItem.

Swift

@IBOutlet weak var privacySettingsButton: UIBarButtonItem!

var isPrivacyOptionsRequired: Bool {
  return UMPConsentInformation.sharedInstance.privacyOptionsRequirementStatus == .required
}

override func viewDidLoad() {
  // ...

  // Request an update for the consent information.
  UMPConsentInformation.sharedInstance.requestConsentInfoUpdate(with: parameters) {
    // ...

    UMPConsentForm.loadAndPresentIfRequired(from: self) {
      //...

      // Consent has been gathered.

      // Show the button if privacy options are required.
      self.privacySettingsButton.isEnabled = isPrivacyOptionsRequired
    }
  }
  // ...
}

// Present the privacy options form when a user interacts with the
// privacy settings button.
@IBAction func privacySettingsTapped(_ sender: UIBarButtonItem) {
  UMPConsentForm.presentPrivacyOptionsForm(from: self) {
    [weak self] formError in
    guard let self, let formError else { return }

    // Handle the error.
  }
}

Objective-C

@interface ViewController ()
@property(weak, nonatomic) IBOutlet UIBarButtonItem *privacySettingsButton;
@end

- (BOOL)isPrivacyOptionsRequired {
  return UMPConsentInformation.sharedInstance.privacyOptionsRequirementStatus ==
         UMPPrivacyOptionsRequirementStatusRequired;
}

- (void)viewDidLoad {
  // ...

  __weak __typeof__(self) weakSelf = self;
  // Request an update for the consent information.
  [UMPConsentInformation.sharedInstance
      requestConsentInfoUpdateWithParameters:parameters
          completionHandler:^(NSError *_Nullable requestConsentError) {
            // ...

            [UMPConsentForm loadAndPresentIfRequiredFromViewController:strongSelf
                completionHandler:^(NSError *loadAndPresentError) {
                  // ...

                  // Consent has been gathered.

                  // Show the button if privacy options are required.
                  strongSelf.privacySettingsButton.enabled = isPrivacyOptionsRequired;
                }];
          }];
}

// Present the privacy options form when a user interacts with your
// privacy settings button.
- (IBAction)privacySettingsTapped:(UIBarButtonItem *)sender {
  [UMPConsentForm presentPrivacyOptionsFormFromViewController:self
                                completionHandler:^(NSError *_Nullable formError) {
                                  if (formError) {
                                    // Handle the error.
                                  }
                                }];
}

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 requestConsentInfoUpdateWithParameters:completionHandler:.
  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:

    <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 UMPDebugSettings().testDeviceIdentifiers and pass in a list of your test device IDs.

Swift

let parameters = UMPRequestParameters()
let debugSettings = UMPDebugSettings()
debugSettings.testDeviceIdentifiers = ["TEST-DEVICE-HASHED-ID"]
parameters.debugSettings = debugSettings
// Include the UMPRequestParameters in your consent request.
UMPConsentInformation.sharedInstance.requestConsentInfoUpdate(
    with: parameters,
    completionHandler: { error in
      ...
    })

Objective-C

UMPRequestParameters *parameters = [[UMPRequestParameters alloc] init];
UMPDebugSettings *debugSettings = [[UMPDebugSettings alloc] init];
debugSettings.testDeviceIdentifiers = @[ @"TEST-DEVICE-HASHED-ID" ];
parameters.debugSettings = debugSettings;
// Include the UMPRequestParameters in your consent request.
[UMPConsentInformation.sharedInstance
    requestConsentInfoUpdateWithParameters:parameters
                        completionHandler:^(NSError *_Nullable error){
                          ...
}];

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 property of type UMPDebugGeography on UMPDebugSettings. Note that debug settings only work on test devices.

Swift

let parameters = UMPRequestParameters()
let debugSettings = UMPDebugSettings()
debugSettings.testDeviceIdentifiers = ["TEST-DEVICE-HASHED-ID"]
debugSettings.geography = .EEA
parameters.debugSettings = debugSettings
// Include the UMPRequestParameters in your consent request.
UMPConsentInformation.sharedInstance.requestConsentInfoUpdate(
    with: parameters,
    completionHandler: { error in
      ...
    })

Objective-C

UMPRequestParameters *parameters = [[UMPRequestParameters alloc] init];
UMPDebugSettings *debugSettings = [[UMPDebugSettings alloc] init];
debugSettings.testDeviceIdentifiers = @[ @"TEST-DEVICE-HASHED-ID" ];
debugSettings.geography = UMPDebugGeographyEEA;
parameters.debugSettings = debugSettings;
// Include the UMPRequestParameters in your consent request.
[UMPConsentInformation.sharedInstance
    requestConsentInfoUpdateWithParameters:parameters
                         completionHandler:^(NSError *_Nullable error){
                           ...
}];

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.

Swift

UMPConsentInformation.sharedInstance.reset()

Objective-C

[UMPConsentInformation.sharedInstance reset];

Examples on GitHub

UMP SDK integration examples: Swift | Objective-C