Google Customer Reviews vs Google Reviews: which one is on your Shopify store?
Google reviews
Left by anyone on your Business Profile. They drive local search and appear in Maps.
Google Customer Reviews
A Merchant Center programme that surveys buyers after an order and feeds seller ratings into Shopping ads. Opt-in, ecommerce only.
Why Shopify merchants hit both
Searches for “google customer reviews shopify” split roughly evenly between the two, and the answers are completely different.
Which the widget shows
Business Profile reviews. Customer Reviews cannot be collected automatically — manual entry is the workaround.
How to tell which you have
If Google emailed your buyers a survey after their order and the result feeds a seller rating in Shopping ads, that is Customer Reviews. If the reviews appear on your Maps listing and anyone can leave one, that is a Business Profile. A store can have both, doing different jobs in different places, and the one worth building depends on whether you run Shopping ads at all.
Read the full version
The full comparison is in Google Customer Reviews vs Google reviews.