I need to integrate a third party billing system into Magento using SOAP API.
The billing system will be used to offer special discounts to customer who have successfully completed their order and reached the Checkout success page. They will then be asked whether they would like to sign up to our discount scheme. If they select yes I need to add their billing information to the payment system. If the payment is successful I need to have the customer added to a customer group in Magneto.
Hi,
Actually you want users to engage (by offering them a discount ) by signing up a scheme ( or form) before they reach check out process..we can do it very easily...please find our similar examples in the past.