The first option is to add your Amazon affiliate products to your Shopify website as the normal way. This includes logging into your website, going to your store, and then adding a product. The problem with this option is that you need to create a way where the ‘add to cart’ button goes to the Amazon website, and you need to make sure that it goes to the correct Amazon website.
Getting to the right Amazon website is really important because each site they have requires you to have a separate account. You can’t just register on the Amazon.com website and then expect your affiliate links to work for every Amazon website.
There are ways to do this. One of these is to use an app. A good app for you to try is the Quicklink app. This app allows you to replace links for the products direct to the product on any website, including Amazon. This is better if you’re only using one Amazon website, however. If you want to promote your store across different Amazon stores, you might need to use another app.