The dollar amount of commissions an affiliate has to accrue before being paid. Some merchants set a minimum payment threshold themselves (to lower accounting costs by paying less frequently to people sending very few sales) while others allow the affiliate to do so (usually to avoid receiving frequent smaller checks and instead receive one larger one).

Obviously, around Christmas period, people tend to buy more, therefore, post recommended products before this period to take advantage of sales that will go on on Amazon affiliate marketing. It is better to start creating a seasonal schedule for your blog posts early enough. There are several holidays, so you can plan ahead of them to make more sales and earn your commission. 
In affiliate marketing, first click is often used to describe an affiliate program where the first affiliate to get a user to click a link and make a purchase within the limits of the cookie expiration is the one to be credited with the sale, even if the user landed on another affiliate's website and actually converted after clicking on a link from the second site. There has long been a debate between whether first click or last click is most beneficial to both the affiliate and the merchant.
To those on the outside, affiliate marketing can seem like a black box. It’s inner workings are mysterious to most marketers and in many companies it’s not treated with the same seriousness as other channels. Some marketers, only familiar with the bad reputation acquired by some industry players in the 2000s, deride it as a source of spam and little more.
Affiliates are most successful when the products they promote match the interests of their followers and subscribers. In addition, many successful affiliate marketers advise recommending and promoting only products that the affiliate is personally familiar with. That’s because familiarity with the product, program, or service helps build trust between the affiliate and end-user.
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