Troubleshoot AdMob bidding

AI-generated Key Takeaways

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• Fewer ad requests or a missing a3p parameter in subsequent requests can indicate an improper bidding partner integration requiring their SDK.

• To ensure correct setup, confirm AdMob UI configurations and verify app code includes updated Info.plist , matching ad unit IDs, initialized Google Mobile Ads SDK, and the latest adapter and SDK binaries.

• The first ad request may contain the a3p parameter even if bidding was not configured.

When integrating a bidding partner that requires their SDK, the following symptoms indicate an improper integration:

• The Ads Activity report shows significantly fewer ad requests to that partner than you expect.
• The a3p parameter in any request after the first ad request is missing.

Follow this checklist to make sure your setup is correct:

• In the AdMob UI:

  • Confirm that you have followed the specific partner's integration guide to configure third-party bidding demand.

  • Confirm that you have an ad unit mapping for each creative format.

• In your app code:

  • Update your Info.plist file with the same app ID that your ad unit mapping targets.

  • Make sure your ad unit IDs match those in the AdMob UI as they must match exactly.

  • Initialize the Google Mobile Ads SDK and verify that the adapter status is READY prior to loading an ad.

  • Use the latest version of the adapter and SDK binaries for the ad source you're trying to integrate with.