Proofsource and Merchant Center: listings that match your pages
Google Merchant Center is where your product listings reach Google shoppers, and AI answers read the same price and stock. Proofsource is preparing to compare each Merchant Center listing with your live pages and turn any wrong price, stock status or missing product into a fix. It is coming soon: join early access and we tell you when it opens for your workspace.
| Channel | State | Open mismatches |
|---|---|---|
 Shopify | Connected | 3 |
 Google Merchant Center | Waiting for access | None |
| Meta catalog | Waiting for access | None |
Proofsource and Google Merchant Center, in short
The facts, ready to quote.
- Stage
- Coming soon: not connectable yet
- Connectable today
- No. There is nothing to connect or switch on yet
- Reads
- Your product listings, read-only
- Will check
- Price, stock and whether a product is present, against your live pages
- Where it will show
- Shopping, in the Store feed card, and as Fix it rows
- Use today instead
- Shopify stores can use the Shopify catalog check now
Coming soon Coming soon means you can see Merchant Center on its way, but you cannot connect it yet. Nothing is read from your Merchant Center account today. Join early access and we tell you when it opens. Shopify stores can use the Shopify catalog check now.
Why we love Google Merchant Center
In the makers' own words, from their own pages. Proofsource builds on it, never around it.
Free listings in front of millions
Merchant Center lets any business show its products on Google at no cost, across Search, Maps, YouTube and Images, which is a generous way to be found.
From business.google.comMany easy ways to bring products in
You can add products from a spreadsheet template, a file upload or an automatic import from stores such as Shopify, Wix and WooCommerce, then keep them current.
From business.google.comAccurate details shoppers can rely on
Merchant Center is built around keeping product details, stock and delivery information accurate and up to date, with insights on price and promotions to act on.
From business.google.comHow Proofsource uses Google Merchant Center
Will compare Merchant Center listings with your live pages for price, stock and missing products. Coming soon.
- Connect
Connect the account
When it opens, you will connect your Merchant Center account to a brand.
- Know
Compare listing to page
Proofsource will compare each listing's price, stock and presence with what it read on your own product pages.
- Act
Turn each mismatch into a fix
Each disagreement will become a mismatch row on Shopping and a Fix it row, like the Shopify catalog check.
- Prove
Confirm with a re-check
A mismatch will be marked fixed once a re-check no longer finds it.
How to join early access
Join early access
Tell us you want Merchant Center. When it opens, its row in the Store feed card changes from Waiting for access to Connect.
Use the Shopify check meanwhile
If your store runs on Shopify, install the Proofsource Shopify app to get the catalog check now.
Keep your own feed accurate
Matching Merchant Center prices and stock to your pages today means there is nothing to fix when the connection opens.
| Check | Your product page | Merchant Center listing |
|---|---|---|
| Price | Price shown to shoppers | Price in the listing |
| Stock | In stock or sold out | Availability in the listing |
| Presence | Product exists on the site | Product exists in the feed |
What you unlock with Google Merchant Center
Price checks
Will spot a Merchant Center price that differs from your page.
Stock checks
Will catch a listing that says in stock when your page says sold out.
Presence checks
Will find products on your site that never reached the feed.
Mismatch rows on Shopping
Each disagreement will be listed per product, beside your Shopify catalog results.
A fix per mismatch
Every wrong price, stock status or missing product will become a Fix it row.
Closed on a clean re-check
A mismatch will be marked fixed only once a re-check no longer finds it.
Google AI OverviewsGoogle AI Mode
Questions about Proofsource and Google Merchant Center
Can I connect Google Merchant Center today?
No. It is coming soon and there is nothing to connect yet. The card in Shopping reads Waiting for access, and no listings are read from your account.
How do I get early access?
Tell us you want Merchant Center and we tell you when it opens for your workspace. Nothing is stored about your account until then.
What will it do once it connects?
It will compare Merchant Center listings with your live pages for price, stock and presence. Each mismatch will become a row on Shopping and a Fix it row, closed by a clean re-check.
What access will it need?
Read access to your product listings only. When it opens, the page and the app will list the exact permissions before you approve anything.
Is there something I can use now?
Yes. If your store runs on Shopify, the Shopify product catalog check compares your catalog with your pages today, for stores that have the Proofsource app.
Why does product accuracy matter for AI visibility?
AI shopping answers quote prices and stock. When your listings and pages agree, engines such as ChatGPT, Gemini and Google AI Mode repeat the right facts about you. Up to 10 engines run depending on your plan.
Pairs well with Google Merchant Center
Put Google Merchant Center to work for your AI visibility.
Scan your brand today; Google Merchant Center joins your workspace as soon as it opens to you.
Google AI OverviewsGoogle AI Mode