Note that encouraged Qualities usually are not an error, but a warning, and should not have an affect on rich final results displaying. Giving them would assist your schema markup, Which is the reason They can be recommended. Utilized Attribute Benefit - include the value of a used product's ailment. https://addons.prestashop.com/en/seo-natural-search-engine-optimization/31857-automatic-google-rich-snippets-json-ld-open-graph-seo.html