Is there any specific API to list or validate the promo codes/discount added directly in the InfusionSoft?
Basically, we have our own custom payment form where we have only single product checkout. And we manually create the Order, Validate/add credit card and create the invoice.
Our need is to validate or list the promocodes (added directly into infusionsoft) BEFORE user checkouts the order. So that he can select particular promo codes or directly add the one he/she has.