When you log in, there’s a “Mark as purchased” button that allows you to tell me that you used my link for that product. I’ll send payments monthly for orders from the previous month (to take into account any returns).
So literally anything I search for will attach your affiliate link to it? Interesting. I always thought merchants had to add items to their list (I did Amazon Affiliate ages ago and got kicked off after having no activity in 1 year--was using it on my website in recipes, for ingredients purchased on Amazon)