Coding⏱️ 2 min read📅 2026-05-31

How to Fix: "Failed to load ad: 3" with DoubleClick

Failed to load ad: 3 with DoubleClick. Check ad unit ID and ad format in the Google AdMob console.

Quick Answer: Check ad unit ID and ad format in the Google AdMob console

The error 'Failed to load ad: 3' with DoubleClick indicates that the ad request was not properly configured or there is an issue with the ad server. To resolve this issue, you need to ensure that your ad request includes all required parameters and that the ad server is functioning correctly.

🔍 Why This Happens

  • [Cause]

🚀 How to Resolve This Issue

Method 1: Verify Ad Request Parameters

  1. Step 1: Check the Google AdMob documentation for the required parameters for your ad format and device type.

Method 2: Use a Test Device

  1. Step 1: Add the test device ID to your ad request using `addTestDevice("xxx...")`. This will help you isolate the issue and ensure that the problem is not with your device.

✨ Wrapping Up

By following these steps, you should be able to resolve the 'Failed to load ad: 3' error with DoubleClick and successfully display your ads in your Android application.

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