If your product schema is returning errors you’re intending to need to get somewhat more forensic to figure out why. Now that we’ve selected a default Schema type to get additional to your webpages, we will start out adding or customizing the Schema which will be added to our posts. https://www.presta-addons-modules.com/en/opencart-seo-automatic-google-rich-snippets-json-ld-integration-opengraph-twitter-tags-schemaorg.html