Rich snippets do indirectly make improvements to SEO. Using a structured data markup with a website alone wouldn't improve the probability of a higher ranking in search results. Since we’ve selected a default Schema style for being additional to your webpages, we can easily begin incorporating or customizing the Schema https://www.presta-addons-modules.com/en/opencart-seo-automatic-google-rich-snippets-json-ld-integration-opengraph-twitter-tags-schemaorg.html