Types of Schema Markup
See more here [link to detailed post about the difference between the three].
Single product, multiple offers. https://www.blacksocks.com/us/en/funky-socks/funky-thirtysix
- About microdata for Google Shopping: https://support.google.com/merchants/answer/6069143?hl=en
- Google Structured Data Testing Tool: https://developers.google.com/structured-data/testing-tool/
- Product Schema: https://schema.org/Product
- eCommerce SEO Schema Just Got a Lot More Granular – SEL: http://searchengineland.com/e-commerce-seo-using-schema-org-just-got-a-lot-more-granular-139236