Rich Snippets lets you Screen further information regarding your site's webpages while in the search engine results. To start with issues first. Assuming that you just’ve currently put in and configured Rank Math on your website, the first thing you must do would be to activate the Schema module from https://www.presta-addons-modules.com/en/opencart-seo-automatic-google-rich-snippets-json-ld-integration-opengraph-twitter-tags-schemaorg.html