It's commonly linked to throughout your website (such as in the sidebar, at the end of blog posts, etc), in order to attract the most attention.
Choosing your niche is probably the most important step of the entire process. A good niche – like fashion, beauty and health – means that: There’s a large enough audience to target The audience has the spending power and the desire to buy these niche products/services There are numerous different types of products that you can sell

Based on your testing, you’ll choose your target, build your ad, and fine-tune your schedule and budget. You’ll need to spend some time familiarizing yourself with the site and what your target audience is searching for, much as with Google Ads.
Shopify has an affiliate program. I’ve been using Shopify for the past 3 years and I absolutely love what it does for online businesses. So I sign up for the affiliate program and promote it during my speaking gigs, in blog posts (like this one) and I also share it with my network of people who are into starting their own eCommerce businesses. In return, Shopify gives me $58 for each person that signs up as a result of my referral. The people that I promote Shopify to don’t have to pay a higher price. In fact, by virtue of me being an affiliate – I am actually empowered to give special promotions and discounts to people who sign up via my link.