AffiliateWP – Checkout Referrals

Checkout Referrals is an AffiliateWP add-on that lets a customer select an affiliate at checkout, from a select menu or an input field. That affiliate then receives the commission on the purchase. It suits sites whose affiliates are nonprofit organizations: a customer selects or enters the nonprofit, and it earns a commission on the sale.

The menu or field shows only when no referral link is tracked, so it stays hidden if an affiliate link such as /?ref=123 is already in use. Customers can pick an affiliate or key in an affiliate ID or username. You can require a selection, choose how affiliates are displayed in the menu and set the text shown above the field. A payment note on the order screen shows the referral ID, the amount recorded for the affiliate and the affiliate's name.