Shopify Schema Markup for Evaluations Widget is usually really complicated (because it will depend on the evaluation applications that you are using), I recommend you leave it for the gurus.  The prestashop addon helps you to implement search engine marketing of your online store by adding automatic hreflang, and canonical https://bookmarkusers.com/story19513362/helping-the-others-realize-the-advantages-of-product-schema-example