If a new customer's record was tagged as belonging to a certain affiliate as described above, then if the return at any time in the future to make further orders, the affiliate will receive commission on these too.

If an existing customer who does not belong to any affiliate follows a referral link and subsequently makes a purchase on this visit, they will from that point on 'belong to' the affiliate whose link referred them. The affiliate will receive commission for this sale and any future sales made to the same existing customer.