Adding Feedaty snippets

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Hi, a customer of mine asked to integrate Feedaty into his website (it's a review system).
I have two snippets: one for the home page, one for the product page.

I can add them from Sales Channels / Online Store / Themes / Edit Code,
index.liquid for the home page and product.liquid for the product page, am I correct?

There is a problem, though: the code for the product page needs to be customized in each product page with the product SKU. There's a way to do this? 
Does Shopify allows me to use some kind of "variable" for the SKU to make this snippet of code dynamic?