CPS (cost per sale)
CPS is a payment model where the affiliate earns a percentage of each sale they generate, common in e-commerce affiliate programs.
CPS (cost per sale) pays the affiliate a percentage of the sale value. If the commission is 8% and a customer spends €150, the affiliate earns €12.
It's the usual model in e-commerce and for brands' own affiliate programs, often combined with coupon codes for influencers.
Refunds
When an order is cancelled or refunded, the advertiser reverses the conversion and the commission is removed from the affiliate's balance.
In Rastro
Choose CPS as the payout model. The advertiser sends the sale amount in the postback (amount), and Rastro calculates the commission. Sales can also be attributed by coupon code, even without a click.