Structured data is information on your website written in a specific way, such as schema.org or JSON-L, so search engines can read it and know exactly what the information is about. Using structured data is just another way to give Google and other search engines as much information as possible so they can present your page in the search results in the best possible way for users.
Structured data allows your website to appear in “position 0” in the search results on page one. This brings your products to the front and center for higher visibility, more impressions, and ultimately, more conversions. Structured data can define specific elements on your web page such as price, special offers and promotional codes, FAQs, content author, and more.