Shopify Schema Markup for Reviews Widget might be quite demanding (mainly because it will depend on the assessment applications that you are using), I recommend you leave it for the experts.  Installation : Step 1: Add module zip file from the back-Office environment Module & Services menu tab. Module Supervisor https://bookmarknap.com/story10114837/the-smart-trick-of-prestashop-rest-api-that-no-one-is-discussing