Integrate PubMatic with mediation

AI-generated Key Takeaways

• This guide explains how publishers can use Google Mobile Ads SDK to display ads from PubMatic via bidding.

• PubMatic bidding supports banner, interstitial, rewarded, and native ad formats.

• Publishers need to add PubMatic as an ad source within their AdMob account's mediation settings.

• No additional SDKs, adapters, or app code changes are needed after configuring PubMatic as an ad source.

This guide shows you how to use Google Mobile Ads SDK to load and display ads from PubMatic using AdMob Mediation, covering bidding integrations. It covers how to add PubMatic to an ad unit's mediation configuration and how to integrate the PubMatic SDK and adapter into a Unity app.

Supported integrations and ad formats

The AdMob mediation adapter for PubMatic has the following capabilities:

Integration
Bidding
Waterfall
Formats
App Open
Banner
Interstitial
Rewarded
Rewarded Interstitial

Requirements

• Latest Google Mobile Ads SDK
• Unity 2019.4 or higher
• To deploy on Android
  • Android API level 23 or higher
• To deploy on iOS
  • iOS deployment target of 12.0 or higher
• A working Unity project configured with Google Mobile Ads SDK. See Get Started for details.
• Complete the mediation Get started guide

Step 1: Set up configurations in PubMatic UI

Log in to your PubMatic account and select the OpenWrap SDK card.

Add a new application

Navigate to the Apps tab and click the Add App button.

Select the Platform, as well as the App Store URL and App Name for your app.

Android

Under Integration Path, select Unity and select AdMob - SDK Bidding as the Sub-integration Path. Then, click the Add App button.

iOS

Under Integration Path, select Unity and select AdMob - SDK Bidding as the Sub-integration Path. Then, click the Add App button.

Update your app-ads.txt

Authorized Sellers for Apps app-ads.txt is an IAB Tech Lab initiative that helps ensure your app ad inventory is only sold through channels you've identified as authorized. To prevent a significant loss in ad revenue, you'll need to implement an app-ads.txt file. If you haven't done so already, set up an app-ads.txt file for your app.

Before your app is finalized, you will be presented the appropriate entries to add to your app-ads.txt.

For additional information on how to implement app-ads.txt for PubMatic, see How to Implement app-ads.txt.

Profile ID

Once your app is created, navigate to the Apps tab and take note of your newly created application's Profile ID.

Create an ad unit

Under the Ad Units tab, select the app you created on the previous section and click the Create Ad Unit button.

Fill out the form with the details of your ad unit and click Save.

Take note of your newly created OpenWrap Ad Unit ID.

Obtain your Publisher ID

Navigate to the Analytics Dashboard. Hover over the profile icon and take note of your ID.

Step 2: Set up PubMatic demand in AdMob UI

Configure mediation settings for your ad unit

Android

For instructions, see step 2 in the guide for Android.

iOS

For instructions, see step 2 in the guide for iOS.

Add PubMatic to GDPR and US state regulations ad partners list

Important: Verify that you have Account Management permission to complete the configuration for EU Consent and GDPR, US State regulations, and User Messaging Platform. See Manage user access to your account for details.

Follow the steps in European regulations settings and US state regulations settings to add PubMatic to the European and US state regulations ad partners list in the AdMob UI.

Step 3: Import the PubMatic SDK and adapter

Note: Failure to integrate the compatible PubMatic and Google Mobile Ads SDK versions might lead to build issues.

OpenUPM-CLI

Important: If you are migrating from using a .unitypackage to using OpenUPM-CLI, you must manually uninstall the assets from the old location by deleting all files from the Assets/GoogleMobileAds/Mediation/PubMatic folder.

If you have OpenUPM-CLI installed, you can install the Google Mobile Ads PubMatic OpenWrap SDK Mediation Plugin for Unity to your project by running the following command from your project's root directory:

openupm add com.google.ads.mobile.mediation.pubmatic

OpenUPM

Important: If you are migrating from using a .unitypackage to using OpenUPM, you must manually uninstall the assets from the old location by deleting all files from the Assets/GoogleMobileAds/Mediation/PubMatic folder.

In your Unity project editor, select Edit > Project Settings > Package Manager to open the Unity Package Manager Settings.

Under the Scoped Registries tab, add OpenUPM as a scoped registry with the following details:

• Name: OpenUPM
• URL: https://package.openupm.com
• Scope(s): com.google

Then, navigate to Window > Package Manager to open the Unity Package Manager and select My Registries from the drop-down menu.

Select the Google Mobile Ads PubMatic Mediation package and click Install.

Unity Package

Download the latest version of Google Mobile Ads mediation plugin for PubMatic OpenWrap SDK from the download link in the Changelog and extract the GoogleMobileAdsPubMaticMediation.unitypackage from the zip file.

In your Unity project editor, select Assets > Import Package > Custom Package and find the GoogleMobileAdsPubMaticMediation.unitypackage file you downloaded. Make sure that all the files are selected and click Import.

Then, select Assets > External Dependency Manager > Android Resolver > Force Resolve. The External Dependency Manager library will perform dependency resolution from scratch and copy the declared dependencies into the Assets/Plugins/Android directory of your Unity app.

Step 4: Implement privacy settings on PubMatic SDK

EU Consent and GDPR

To comply with Google EU User Consent Policy, you must make certain disclosures to your users in the European Economic Area (EEA), the UK, and Switzerland, and obtain their consent for the use of cookies or other local storage where legally required, and for the collection, sharing, and use of personal data for ads personalization. This policy reflects the requirements of the EU ePrivacy Directive and the General Data Protection Regulation (GDPR). You are responsible for verifying consent is propagated to each ad source in your mediation chain. Google is unable to pass the user's consent choice to such networks automatically.

PubMatic automatically reads GDPR consent set by consent management platforms that support Google's Additional Consent specification, including the UMP SDK. For more information, see Pass GDPR and GDPR consent.

US states privacy laws

US states privacy laws require giving users the right to opt out of the "sale" of their "personal information" (as the law defines those terms), with the opt-out offered through a prominent "Do Not Sell My Personal Information" link on the "selling" party's homepage. The US states privacy laws compliance guide offers the ability to enable restricted data processing for Google ad serving, but Google is unable to apply this setting to each ad network in your mediation chain. Therefore, you must identify each ad network in your mediation chain that may participate in the sale of personal information and follow guidance from each of those networks to ensure compliance.

PubMatic automatically reads CCPA consent set by consent management platforms that support Google's Additional Consent specification, including the UMP SDK. For more information, see Set CCPA String.

Step 5: Add required code

Android

No additional code required for PubMatic integration.

iOS

SKAdNetwork integration

Follow PubMatic's documentation to add the SKAdNetwork identifiers to your project's Info.plist file.

Step 6: Test your implementation

Enable test ads

Make sure you register your test device for AdMob.

Important: Disable test mode for AdMob and PubMatic OpenWrap SDK before releasing your app.

Verify test ads

To verify that you are receiving test ads from PubMatic OpenWrap SDK, enable single ad source testing in ad inspector using the PubMatic (Bidding) ad source(s).

Error codes

If the adapter fails to receive an ad from PubMatic, publishers can check the underlying error from the ad response using ResponseInfo under the following classes:

Android

com.pubmatic.sdk
com.google.ads.mediation.pubmatic

iOS

GADMediationAdapterPubMatic

Here are the codes and accompanying messages thrown by the PubMatic adapter when an ad fails to load:

Android

Error code	Domain	Reason
101	com.google.ads.mediation.pubmatic	Server configuration missing a required publisher ID.
102	com.google.ads.mediation.pubmatic	Invalid ad configuration for loading an ad.
103	com.google.ads.mediation.pubmatic	Failed to present an ad because the ad was not ready.
1001-5002	Sent by PubMatic SDK	PubMatic SDK returned an error. See PubMatic's documentation for more details.

iOS

Error code	Domain	Reason
101	com.google.ads.mediation.pubmatic	Server configuration missing a required publisher ID.
102	com.google.ads.mediation.pubmatic	The bidding signal collection request failed because multiple formats, no format, or an unsupported format was specified in the request parameters.
103	com.google.ads.mediation.pubmatic	Invalid ad configuration for loading an ad.
104	com.google.ads.mediation.pubmatic	Failed to present an interstitial ad because the ad was not ready.
105	com.google.ads.mediation.pubmatic	Failed to present an rewarded ad because the ad was not ready.
106	com.google.ads.mediation.pubmatic	Failed to load one of the native ad image sources.
1001-5002	Sent by PubMatic SDK	PubMatic SDK returned an error. See PubMatic's documentation for more details.

PubMatic Unity Mediation Plugin Changelog

Version 1.1.0

• Supports PubMatic Android adapter version 4.9.1.0.
• Supports PubMatic iOS adapter version 4.8.1.0.
• Built and tested with the Google Mobile Ads Unity Plugin version 10.5.0.

Version 1.0.0

• First release!
• Supports PubMatic Android adapter version 4.8.0.0.
• Supports PubMatic iOS adapter version 4.8.1.0.
• Built and tested with the Google Mobile Ads Unity Plugin version 10.4.2.