How can structured data codes help me?

I tried some structured data codes from for my e-commerce site but I found that some of them are not working like social media, reviews. so how it`s work ??

Google ultimately decides whether or not they show the structured data; you can’t force them to show it on search results.

Common reasons for them not showing…

a) You’re trying to use multiple on the same page.
b) There’s not enough data for Google to believe they’ll be useful.
c) You didn’t configure them properly.

Google has a free tool to test structured data on your site. Try it out.