Is your post or web site a couple of public celebration? Then, make use of the Event sort to markup your metadata. Here's each of the fields that you need to see when using the Function Schema in your publish. Step one is to add structured markup to your website. https://www.presta-addons-modules.com/en/opencart-seo-automatic-google-rich-snippets-json-ld-integration-opengraph-twitter-tags-schemaorg.html