Fixing “Additional Domains Detected For Configuration” Warning

If you’re managing multiple domains under a single Google Ads account, you might see this warning: “Additional Domains Detected For Configuration”

It can appear in both Google Tag Manager (GTM) and Google Analytics 4 (GA4).

Here, you’ll learn how to fix the issue in GTM and GA4 by exploring:

• Common Reasons for the “Additional Domains Detected For Configuration” Warning
• Step-by-Step Guide to Fixing the Issue in Google Analytics 4 (GA4)
• Comprehensive Guide to Fixing the Issue in Google Tag Manager (GTM)
• How to Prevent the “Additional Domains Detected For Configuration” Warning

By following the steps below, you’ll ensure your domains are correctly set up and your tracking is accurate across all platforms.

Important: If you are also having trouble with your Google tags, be sure to check our detailed step-by-step guide to fixing the “Some of Your Pages Are Not Tagged” warning.

Why Do You See the “Additional Domains Detected For Configuration” Warning?

The “Additional Domains Detected For Configuration” warning usually pops up in both GA4 and GTM when there’s an issue with how your domains are set up for tracking.

Here’s why you might see this warning:

• Using Multiple Domains: If your website uses more than one domain and they aren’t set up correctly for tracking, this warning shows up
• Cross-Domain Tracking Not Set Up in GA4: If you haven’t correctly set up cross-domain tracking in GA4, Google may notice domains that aren’t linked properly, leading to this warning.
• Conversion Linker Tag Not Configured in GTM: In GTM, this warning may appear if the Conversion Linker tag isn’t set up to link across your domains. Without this setup, GTM can’t track conversions correctly, triggering the warning.
• Recent Domain Changes: If you’ve added new domains or made changes to your existing ones without updating your GA4 or GTM settings, Google might flag these as potential issues, causing the warning.
• Conflicting Tags or Scripts: Sometimes, other tags or scripts in your GTM container or GA4 setup might interfere with domain tracking, leading to the detection of unconfigured domains.

These are the common reasons you might see the “Additional Domains Detected For Configuration” warning.

In the following sections, you will explore how to fix the issue in both GA4 and GTM.

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Fixing the “Additional Domains Detected For Configuration” Warning on Google Analytics 4 (GA4)

This guide will help you fix the “Additional Domains Detected For Configuration” warning in Google Analytics 4 (GA4) by making sure your domains are set up correctly.

Configure Your Domains

The first step in resolving the “Additional Domains Detected For Configuration” warning is to ensure that all your domains are correctly configured within your Google Analytics 4 property.

Follow the steps below to configure your domains:

Intermediate

5 min

Step 1Log in to GA4

Step 2Click on Data Streams

Step 3Check Tag Settings

Step 4Set Up Cross-Domain Tracking

Step 5Save Your Changes

This configuration will allow Google Analytics 4 to track user interactions across your specified domains, eliminating the “Additional Domains Detected For Configuration” warning.

Verify That Cross-Domain Measurement is Working Properly

After configuring your domains, ensure cross-domain measurement is working correctly by verifying that your setup tracks users across all domains without errors.

Intermediate

5 min

Step 1Open a Page with a Link

Step 2Check the URL

If everything checks out, your cross-domain measurement is functioning as expected. To further ensure smooth tracking, learn how to find 404 errors in GA4 here.

Troubleshooting Cross-Domain Measurement Issues

Even with correct setup, issues can occur; if the linker parameter (_gl) is missing or other problems arise, follow these troubleshooting steps.

Intermediate

5 min

Step 1Check for URL Redirects

Step 2Fix Redirect Issues

Step 3Address Script Conflicts

By following these troubleshooting steps, you can address common issues that prevent cross-domain measurement in Google Analytics 4 from working properly.

How to Fix the “Additional Domains Detected For Configuration” Warning on Google Tag Manager (GTM)

This guide will help you fix the “Additional Domains Detected For Configuration” warning in Google Tag Manager (GTM) by ensuring that your domains are properly configured in the Conversion Linker tag.

Follow the steps below to configure your domains:

Check Your GTM Container

The first step in resolving the “Additional Domains Detected For Configuration” warning in GTM, make sure all your domains are properly set up in the Conversion Linker tag within your Google Tag Manager container.

Intermediate

5 min

Step 1Log in to GTM

Step 2Look for the Warning

Configure Your Domains in the Conversion Linker Tag

You need to set up your domains correctly in the Conversion Linker tag to ensure proper tracking across all domains.

Intermediate

5 min

Step 1Review Tag Settings

Step 2Add Domains to Workspace

Step 3Submit and Publish

Verify That the Auto-Linking feature of Google Ads Conversion Linker in GTM is Working Properly

After configuring your domains, ensure the “Auto-Linking” feature of Google Ads Conversion Linker in GTM is working correctly by verifying that your setup tracks conversions across all domains without errors.

Intermediate

5 min

Step 1Click an Ad

Step 2Navigate to a Page with a Link

Step 3Click the Link

Step 4Check the URL

Step 5Check the Cookies

If everything checks out, your cross-domain measurement is functioning as expected.

Troubleshoot Common Issues

If tracking isn’t working as expected, use these troubleshooting steps to identify and resolve common issues like URL redirects or script conflicts.

Intermediate

5 min

Step 1Check for URL Redirects

Step 2Fix Redirect Issues

Step 3Address Script Conflicts

By carefully following these steps, you’ve fixed the “Additional Domains Detected For Configuration” warning and set up your domains correctly in both Google Tag Manager and Google Analytics 4.

How to Prevent the “Additional Domains Detected For Configuration” Warning

To avoid seeing the “Additional Domains Detected For Configuration” warning in the future, consider the following best practices:

• Regularly Review Domain Configurations: Frequently check your GA4 and GTM settings, especially after adding new domains or making changes to existing ones.
• Ensure Proper Cross-Domain Tracking: Set up cross-domain tracking correctly from the start to avoid configuration issues.
• Monitor Tracking Data: Regularly monitor your tracking data to quickly identify and address any inconsistencies or errors. For more detailed insights, see our guide on tracking Shopify Sales with Shopify Analytics and GA4.
• Keep Tags and Scripts Updated: Ensure that all tags and scripts related to tracking are up to date and properly configured to avoid conflicts.
• Conduct Routine Audits: Periodically audit your tracking setup to ensure everything is functioning as expected, making adjustments as needed.

By following these steps, you can minimize the risk of this issue occurring in the future.

FAQ: “Additional Domains Detected For Configuration” Warning

Here are the frequently asked questions about “Additional Domains Detected For Configuration” warning that may appear in Google Analytics 4(GA4) or Google Tag Manager(GTM).

What does the “Additional Domains Detected For Configuration” warning mean in GA4 and GTM?

This warning indicates that Google has detected multiple domains in your tracking setup, but they haven’t been properly configured for cross-domain tracking, which can lead to inaccurate data.

How do I fix the “Additional Domains Detected For Configuration” warning in GA4?

You can fix this warning in GA4 by configuring your domains correctly under the Cross-Domain Linking Configuration in your Google Analytics property.

Why am I seeing the “Additional Domains Detected For Configuration” warning in GTM?

This warning appears in GTM if your domains are not properly set up in the Conversion Linker tag, which is necessary for accurate cross-domain tracking.

Can the “Additional Domains Detected For Configuration” warning affect my Google Ads tracking?

Yes, if not resolved, this warning can lead to inaccurate Google Ads tracking across your domains, impacting your campaign performance data.

What happens if I ignore the “Additional Domains Detected For Configuration” warning?

Ignoring this warning can result in incomplete or incorrect tracking data, affecting your ability to accurately measure user interactions across multiple domains.

How often should I check for the “Additional Domains Detected For Configuration” warning?

It’s a good practice to regularly check your GA4 and GTM settings, especially after making changes to your domain setup, to avoid this warning. Understanding your checkout journey in GA4 can also provide deeper insights into your data’s accuracy.

Can I prevent the “Additional Domains Detected For Configuration” warning from occurring?

Yes, by properly setting up and maintaining your domain configurations in GA4 and GTM, you can prevent this warning from occurring.

What are the common causes of the “Additional Domains Detected For Configuration” warning?

Common causes include using multiple domains without proper cross-domain tracking setup, recent changes to domain configurations, or conflicts with other tracking scripts.

How can I verify that the “Additional Domains Detected For Configuration” issue has been resolved?

You can verify the issue is resolved by testing cross-domain tracking on your site and checking for the presence of the linker parameter in the URL or relevant cookies.

Does the “Additional Domains Detected For Configuration” warning apply to subdomains as well?

Yes, this warning can apply to both domains and subdomains, and they all need to be correctly configured to ensure accurate cross-domain tracking.

Conclusion

Addressing the “Additional Domains Detected For Configuration” warning is important for ensuring accurate cross-domain measurement in your Google Ads setup.

By following the steps outlined in this guide, you can effectively resolve the “Additional Domains Detected For Configuration” warning in both Google Analytics 4 (GA4) and Google Tag Manager (GTM). Next, consider optimizing your Google Ads by linking GA4, Search Console, and Merchant Center for more robust tracking.

Remember to troubleshoot any issues that arise to keep your tracking consistent and effective.

Bonus Content: If you find our step-by-step guide on fixing “Additional Domains Detected For Configuration” warning helpful, you might also be interested in these related articles:

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