If your product schema is returning faults you’re gonna have to get somewhat more forensic to determine why. Insufficient Freshness/Promotion – Your written content may not have sufficient new search quantity or social alerts for Google to justify surfacing snippets above other listings. Produce new content and maximize one-way links/mentions https://www.presta-addons-modules.com/en/opencart-seo-automatic-google-rich-snippets-json-ld-integration-opengraph-twitter-tags-schemaorg.html