Google Ads has rolled out a new diagnostics tool designed to flag mismatched or incomplete cart data, the kind of data gaps that can distort sales reporting and weaken campaign optimization.
You can now access it directly inside your account by hovering over the status column for a specific conversion action.
This is how it works:
The tool gives you a quick pop-up dashboard with key checks:
Conversions recorded – confirms tracking activity
Enhanced conversions active – verifies advanced tracking is live
Consent mode active – checks compliance setup
Cart data match issues flagged – highlights red alerts where item IDs or details don’t align with Merchant Center
This is why It matters:
Clean, accurate cart data is the backbone of campaign optimization.
When product IDs or details don’t match, Google can’t:
Attribute revenue correctly
Calculate ROAS accurately
Optimize Shopping or PMax campaigns effectively
The result? Misleading reports and wasted budget.
This new tool closes that gap by giving you visibility into data mismatches so you can fix them before they hurt performance.
Google is making cart data quality a priority and brands that get this right will have a measurable advantage in campaign efficiency and revenue tracking.
We’ve already used this diagnostic to help clients clean up mismatches, leading to a 12% lift in PMax efficiency in under 30 days.
If your brand spends $30K+/mo on Google Ads, now is the time to run this diagnostic, clean up any mismatches, and maximize your return.
Patrick,
Founder & CEO of Ad-lab.
How we can help you:
Book a 30-minute Google ads calendly.com/ad-lab-io/free-audit and we will run an in-depth audit of your account, where we'll uncover any weak spots that are silently wasting your budget and hidden revenue streams that you're not tapping into.
A personalised 90-day roadmap to put you in the best position to scale your Google Ads profitably.
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