Inconsistent data in Google Merchant Center: What you should know

If you've spent any time in Google Merchant Center's analytics, you've probably noticed something feels off. Products showing clicks but no impressions. CTR data that's missing entirely at the product level. Numbers that don't seem to add up no matter how you slice the date range or adjust the filters. You're not imagining it, and you're not doing anything wrong.

This is one of those frustrations that's common enough to be worth talking about, but rarely gets addressed directly. Most guides assume GMC analytics just... works. This one is for the people staring at a dashboard that raises more questions than it answers.

Why GMC data is missing in the first place

The most likely culprit is data aggregation and anonymization. Google routinely withholds data when the sample size is too small, when it could be used to identify individual user behavior, or when it simply doesn't meet the threshold required to report it.

This isn't unique to Google Merchant Center. Anyone who has worked with Google Search Console knows the frustration of hidden search terms and incomplete impression data. Ahrefs did an extensive study on this and found that a significant portion of clicks in Google Search Console are attributed to hidden or anonymized queries, meaning GSC consistently underreports the full picture of your organic traffic.

With GSC, the community has had years to document this behavior, debate it, and build workarounds around it. With Google Merchant Center analytics, we're at an earlier stage. Google hasn't commented on why impression data can be zero while click data exists, or why CTR might be missing entirely at the individual product level.

But it's reasonable to assume the same underlying mechanisms are at play. When clicks happen in low volumes, when data can't be aggregated to a minimum threshold, or when attribution is ambiguous across multiple Google surfaces (Search, Shopping tab, Images, Google Lens), data can drop out entirely or show up in unexpected ways.

What this means for your reporting

The practical impact depends on how much you're relying on GMC analytics to make decisions. If you're using it as a primary source of truth for product performance, the gaps can seriously distort your picture.

Consider a few scenarios that are frustratingly common.

A product shows several clicks but zero impressions. Mathematically, that's impossible. A click has to come from somewhere. What's likely happening is that the click was recorded, but the impression data was below Google's reporting threshold and got suppressed. Here's what that looks like in the product overview table:

You'll also run into this at the account level, where the impressions graph looks strangely flat or drops out entirely for stretches of time, even when clicks are being recorded:

And then there's the CTR problem. A product-level traffic view can show a CTR graph with no data points whatsoever, even though the aggregate account view shows healthy CTR numbers. The aggregated view has enough data to report; the individual product view doesn't. Google shows you this warning directly, but it doesn't explain why:

This makes it hard to answer basic questions. Which of my products are getting impressions but not converting clicks? Which ones have a low CTR that I should fix? Without reliable data at the product level, these questions go unanswered.

Better ways to measure what actually matters

Rather than trying to work around GMC's data gaps, it's worth supplementing it with sources that give you a cleaner signal.

Google Search Console's merchant listings report

GSC has a dedicated report for merchant listings under Performance > Search Appearance > Merchant Listings. This shows clicks and impressions specifically from the product cards that appear after a user clicks through a product carousel listing.

One important nuance: merchant listing clicks in GSC will almost always be lower than the clicks reported in Google Merchant Center. That's not a bug. GMC tracks clicks across all of Google's surfaces, which can include the Shopping tab, Google Images, Google Lens, and standard Search results. GSC's merchant listings report is narrower in scope. Neither number is wrong; they're just measuring different things. We've written a separate breakdown of exactly how these two data sources compare: Google Merchant Center clicks vs Search Console.

Productrise for actual SERP-based visibility tracking

Both GMC and GSC ultimately rely on data that Google chooses to share with you, subject to their thresholds and anonymization rules. If Google decides a data point doesn't meet their reporting criteria, you don't get it.

Productrise takes a different approach. Rather than pulling from Google's self-reported analytics, it tracks where your products actually appear in Google's organic product carousels by crawling real search results. This means you get position data, carousel appearance data, and share of voice information based on what's actually happening in the SERPs, not what Google decides to surface in your dashboard.

If your products are gaining or losing visibility in carousels, you'll see it. If a competitor is consistently outranking you for a set of queries, you'll see that too. This kind of data doesn't disappear because a product only got three clicks last month.

You can also use Productrise's query group reports to track your share of voice across entire product categories, which gives you a much more reliable trend line than trying to piece together GMC impression data that keeps dropping out.

Start measuring where it actually matters

GMC's analytics have their place, but they shouldn't be your only source of data on organic product visibility. The gaps are too significant and too unpredictable.

A more reliable setup looks something like this: use Productrise to track carousel appearances, rankings, and share of voice at the query and product level. Use GSC's merchant listings report as a secondary signal for click data from carousel interactions. And treat GMC analytics as supplementary context rather than a primary reporting layer.

If you haven't looked at your organic product visibility through actual SERP data yet, you can get started with Productrise for free. Connect your product feed, set up your target queries, and see where your products actually appear. No credit card required.

From there: measure product visibility where it matters, improve your product feeds based on what you find, and grow your organic revenue with a clearer picture of what's actually working.