Fix diagnostic alerts for conversions with multiple data sources (beta)

Conversions using multiple data sources use additional event data to boost Google tag conversions across Google Ads. When you’ve adopted conversions using multiple data sources, you’ll receive diagnostic alerts to help you identify and address potential setup issues, including data source errors.

On this page

• View your conversion using multiple data sources diagnostics
• Diagnostic alerts
• Severity levels of diagnostic alerts
• Non-biddable trial period

View your conversion using multiple data sources diagnostics report from the conversions diagnostics tab

1. Go to Summary within the Goals menu .

2. Select the Diagnostics tab on the top of the page.

3. If conversions with multiple data sources have been implemented, a “Conversions using multiple data sources” card with the status across all eligible conversion actions will appear.

4. Select View Details to view the issues with your set up.

Diagnostic alerts

These alerts help identify setup issues that prevent accurate reporting with additional data sources.

Google tag has stopped sending data

This diagnostic appears when your conversions aren’t being counted because your tag stopped sending data. View instructions on how to use Tag Assistant to ensure the tag is correctly installed on your website.

Offline data not found

Check whether the data source exists. View instructions on how to ensure credentials are valid and data sharing permissions are up to date.

Google tag is missing transaction ID

Your Google tag is sending data, but the transaction ID is missing or invalid. Transaction IDs are unique identifiers for each transaction. They help prevent counting the same conversions twice. View instructions on how to update your conversion event snippet to include the missing parameter.

Your conversions may be overcounted

Fewer than 10% of transaction IDs matched between the Google tag and additional data source in the past 2 days. To ensure accurate bidding and conversion reporting, use a unique transaction ID for each conversion and make sure it matches across your Google tag and offline data sources.

Troubleshooting steps

1. Check for transaction_id formatting discrepancies: Review the transaction_id setup in your Google tag and additional data sources and look for common formatting errors:
   • Prefixes or suffixes: order-12345 vs. 12345
   • Case sensitivity: abc-123 vs. ABC-123
   • Data type: 12345 vs. 12345.0
   • Leading zeros or different lengths: 00123 vs. 123
   • Dummy or placeholder IDs: Check for placeholder values like undefined or order_id being passed.

2. Investigate partial transaction_id coverage from the Google tag: A low overlap rate can occur if the tag only intermittently collects transaction_ids. Ensure that transaction_id is sent on every tag ping. Common root cause is due to incorrect tagging logic on a subset of conversion pages. Learn how to set up transaction IDs for website conversions.

Severity levels of diagnostic alerts

The severity levels of diagnostic alerts are the same across all platforms, regardless of where they appear.

Excellent

“Excellent” indicates that conversions using multiple data sources are active and there’s no indication of any issues affecting campaign performance.

Good

“Good” indicates that your multiple-source conversion setup is active, but at least one recommendation is given to help enhance performance. For example, you may only be passing one conversion identifier. Passing more would give you a better measurement of your conversions.

Needs attention

“Needs attention” indicates that conversions using multiple data sources are active and receiving some data, but there are issues affecting campaign performance that need attention. For example, you’re sending a conversion value with your tag, but your offline data isn’t sending a conversion value, which can negatively impact your bidding performance.

Urgent

“Urgent” indicates that there are conversions using multiple data sources that have urgent issues affecting campaign performance. For example, your conversions using multiple data sources may have received offline data at one point, but are now missing offline data sources, or you might not have transaction ID matches between your online tag and offline data.

Non-biddable trial period

When setting up conversions with multiple data sources, your additional source conversions will enter a 14-day trial period. During this period, data from your additional source will be used for reporting purposes, including providing estimated overlap rates and uplift data in diagnostics, but it will not be used for bidding. Your existing tag-source conversions will continue to be biddable as usual.

Throughout the 14-day trial period, you’ll also receive conversions with multiple data sources diagnostic alerts to help identify and resolve any set up or data quality issues without additional data uploads impacting bidding. These alerts are designed to provide clear guidance to help you quickly understand and fix any problems.

At the end of the 14-day trial, the multiple data source conversions will automatically become biddable, regardless of any diagnostic alerts. The actual conversion uplift will then be visible.

When filtering your diagnostics for a single conversion action, if that conversion action is currently in a trial period, you’ll notice the following message until the trial period is over:

“The additional data source you recently connected to this web conversion action becomes biddable on {month, day}. During this time, diagnostics for this conversion will only be used to surface errors to identify any potential impacts to bidding.”

Once the trial period is over for that conversion action, the message will disappear.

Related links

• About the enhanced conversions for leads diagnostics report
• Set up your Google tag across your Google Accounts
• Troubleshoot connection issues