Google Customer Reviews survey opt-in, the Google store widget and a product reviews feed in one add-on.
Tested on 2 buildsUpdated Nov 3, 2026Version 1.0.0CS-Cart, Multi-Vendor 4.17.2 – 4.21.x No core file edits
Built for
Google Customer Reviews & Ratings: the Google Customer Reviews survey opt-in after checkout, the store widget and a product reviews feed for Merchant Center1 of 7
What it does
For stores that sell through Google Merchant Center and want seller ratings and product ratings from their own customers. Google Customer Reviews is free; you need a Merchant Center account and must join the program there. The add-on places Google's opt-in code on the order confirmation page, adds the store widget and publishes an XML feed of your approved product reviews. No data is sent to us.
How it works
Enter your Merchant Center ID and choose the dialog position. After checkout, Google shows its opt-in dialog on the confirmation page; customers who agree get Google's survey by e-mail. Turn on the store widget to show your rating on every page. Copy the feed URL from Marketing, Google Customer Reviews into Merchant Center as a scheduled fetch. The dashboard shows the setup checklist, opt-ins shown, reviews in the feed and the last fetch.
Features
Survey opt-in on the order confirmation page with Merchant Center ID, order, e-mail and country
Estimated delivery date from the shipping method's delivery time or your own days, business days only
No survey for failed, declined, canceled or incomplete orders
Dialog position and language settings
Google store widget (formerly the Google Customer Reviews badge) with position, region and margins
Product reviews feed in Google's XML schema 2.4, validated against Google's schema file
Reviews from the Product reviews add-on or Comments and reviews, with pros, cons and review photos
GTIN from a product feature or the product code, SKU and brand
Reviewer name in full, shortened or anonymous
Dashboard with setup checklist, opt-in log, feed check and preview
Per-storefront Merchant Center ID on CS-Cart Ultimate
Full page cache safe: the widget is the same for every visitor
What you get
Package
kv_google_customer_reviews-1.0.0.zip, installed through Add-ons → Manage add-ons
Updates & support
12 months included. Download new versions from your account and install them in Add-ons → Manage add-ons or the Upgrade Center.
License
1 production installation. Staging, dev and localhost are free and unlimited. The add-on keeps working after the update period ends. How licensing works
Compatibility
We list only the builds we install and test on. “Tested” means the full test plan was run on that build; “Supported” means the build is inside the supported range and uses the same hooks.
CS-Cart version and edition compatibility
CS-Cart version
CS-Cart
CS-Cart Ultimate
Multi-Vendor
Multi-Vendor Ultimate
4.22 and later
Testing next
Testing next
Testing next
Testing next
4.21.2
Supported
Supported
Supported
Supported
4.20.x
Supported
Supported
Supported
Supported
4.19.x
Supported
Supported
Supported
Supported
4.18.x
Supported
Supported
Supported
Supported
4.17.2
Tested
Supported
Tested
Supported
Before 4.17.2
Not supported
Not supported
Not supported
Not supported
Last tested build: Multi-Vendor 4.17.2, Nov 3, 2026Tested on: Multi-Vendor 4.17.2, CS-Cart 4.17.2
Requirements
PHP
CS-Cart or Multi-Vendor 4.17.2 to 4.21.x, PHP 7.4 to 8.3
Requirement
A Google Merchant Center account that has joined Google Customer Reviews (Merchant Center > Growth > Manage programs)
Requirement
For the reviews feed: the core Product reviews add-on (or Comments and reviews) with approved reviews
Core changes
None. Hooks and template overrides only
1.0.0
Nov 3, 2026
Latest
Added 8
Google Customer Reviews survey opt-in on the order confirmation page: Merchant Center ID, order, e-mail, delivery country and estimated delivery date; dialog position and language.
Estimated delivery date from the shipping method's delivery time or from processing and delivery days, business days only.
No opt-in for failed, declined, canceled or incomplete orders, orders without shipping and checkout placeholder e-mails.
Google store widget (formerly the Google Customer Reviews badge) with position, region and margins, optional on checkout pages.
Product reviews feed in Google's XML schema 2.4 from the Product reviews add-on (or Comments and reviews): ratings, pros and cons, review photos, GTIN, SKU, brand, reviewer name modes.
Dashboard with setup checklist, opt-in log, feed check, preview and a new feed URL.
Per-storefront settings on CS-Cart Ultimate; Multi-Vendor at marketplace level.
Domain-bound license check and self-healing upgrades.
Tested on Multi-Vendor 4.17.2, CS-Cart 4.17.2. First release.
Does Google Customer Reviews cost anything?
No. You need a Google Merchant Center account and must join the program there.
Will I get star ratings in Google Ads or Shopping?
That is decided by Google. Seller ratings and product ratings have their own minimum numbers of reviews and their own rules. The add-on makes sure every eligible order gets the survey offer and that your existing product reviews are available as a feed.
Why does the opt-in not appear?
Check the dashboard checklist: the Merchant Center ID must be set, the order status must not be in the skip list, and the order needs an e-mail address, a delivery country and (by default) shipping. Ad blockers and some cookie consent tools can block Google's script.
Do I need customer consent for the survey?
Google's dialog asks the customer itself. Mention Google Customer Reviews in your privacy policy, and if your cookie banner blocks third-party scripts, allow apis.google.com on the order confirmation page.
Can I keep my old badge code?
Google replaced the Google Customer Reviews badge with the store widget. Remove any old badge code from your theme and turn on the widget in the add-on.
Which reviews go into the feed?
Approved reviews with a rating from the core Product reviews add-on (or from Comments and reviews if Product reviews is off), for active products. Pending reviews are counted on the dashboard but not exported.
Multi-Vendor: can vendors set their own Merchant Center ID?
No. Google Customer Reviews belongs to the marketplace's Merchant Center account. Vendors have no access to the settings or the dashboard.
CS-Cart Ultimate with several storefronts?
Each storefront has its own Merchant Center ID, widget settings, opt-in log and feed URL (on the storefront's own domain). One license covers every storefront of the installation.
Abandoned Cart Recovery Pro
