When your first product reviews have arrived and are visible in your dashboard, you can create a feed. The review data in a feed for product reviews is linked to products based on several factors. Worldwide Unique product IDs such as GTINs (global trade item number) are the most important for this. If no GTIN data is available, Google will try to match reviews based on other metadata, such as SKU, product URLs, and brand and MPN (manufacturer part number) combinations. These IDs usually do not provide a good link. This means that without a GTIN, you may not see star ratings next to the products you offer.
It is therefore important to give the GTIN a logical place in your product information so that our plugin can easily find it. How this is best done differs per type of webshop software you run. Some software offers a place to enter your GTIN per product, for others you may have to rely on our Trustprofile module/app or a different plugin. We suggest you check out the product review FAQ page of the software you use for more information.
Note: GTIN codes are not needed to enjoy product reviews, they merely improve results in Google.