Sure, you can operate the two concurrently, and we advise it! In the US, advertisers managing free listings and adverts collectively have found an average of above 50% rise in clicks and over 100% rise in impressions on both equally free listings and adverts on the Shopping tab. Product grouping https://www.presta-addons-modules.com/en/seo/prestashop-google-merchant-center-google-shopping.html