tetherties

This plugin generates a strictly formatted XML feed of your product reviews that meets Google Merchant Center requirements. By submitting this feed to Google, you can enable “Product Ratings” (stars) on your Google Shopping PLAs (Product Listing Ads).
Key Features: 
* Universal Support: Works with native WooCommerce reviews, Customer Reviews for WooCommerce (CusRev), YITH Advanced Reviews, and Site Reviews. 
* Strict Schema: Generates the specific nested XML structure Google requires (GTINs, MPNs, Namespaces). 
* Smart Caching: Caches the XML feed to reduce server load. Default refresh is weekly (recommended by Google). 
* Product Identifiers: Maps your GTIN, MPN, and Brand fields to ensure reviews match your products in Google.
Performance & Limits: 
By default, this plugin includes your 2,500 most recent reviews. This safety cap ensures that generating the XML file does not crash your server due to memory exhaustion. 
* Developers: You can increase or remove this limit using the <code>prxml_review_limit</code> filter.

Product Reviews XML for Google Merchant Center

Generate a compliant XML Feed of your WooCommerce product reviews for Google Merchant Center. Display stars on Google Shopping ads.

Feedcomet

The ThemesFor.me Google Product Feed allows to expose all your products from WooCommerce and provide them in the Google Merchants Console.
WHAT IS GOOGLE MERCHANT CENTER?
Google Merchant Center is a tool that helps you upload your store and product data to Google and make it available to Google Shopping and other Google services.
WHAT IS GOOGLE SHOPPING?
Google Shopping is a service that allows buyers to find your products while they search on Google. It is similar to Google AdWords but with additional benefits:
Reach new buyers at lower rates. Because of need of intergation with Google Merchants it is not as popular as Google AdWords, therfore the stakes are lower. 
Show your product with photo and price. Customer acquired this way have much higher conversion rates than others. 
Automaticly control availability of items. Google Shopping display only available items so your new customer can buy your items right away! 
Google Shopping is available in limited countries. For actual list please visit Google Shopping Page.

TFM Google Product Feed

The ThemesFor.me Google Product Feed allows to expose all your products from WooCommerce and provide them in the Google Merchants Console.

Product Reviews XML for Google Merchant Center vs TFM Google Product Feed