How do we know that a particular affiliate drove a sale?

Attribution is the process of identifying which touchpoints in a customer's journey contributed to a sale. In affiliate marketing, this typically involves tracking technologies like cookies or unique affiliate links to credit the correct affiliate partner for a conversion. Without proper attribution, it would be impossible to accurately track and compensate affiliates for their efforts. Commission Rate refers to the percentage or fixed amount an affiliate earns per sale, not the method of identifying the sale's origin. CPA (Cost Per Acquisition) is a pricing model where advertisers pay for a specific action, like a sale, but doesn't explain how the sale is linked to an affiliate. Placement refers to where an affiliate's advertisement or link appears, which is a marketing tactic, not a tracking mechanism.