Hy,
I am customizing nopCommerce for a new Store in Brazil.
During creditcard payment process, customers may select the numbers of installments to buy with their cards.
The problem is that some installments are associated with aditional interest fee.
In this cases the order total must be increased by this aditional fee considered during payment.
How can I set that aditional fee on the customer order total, after the payment be completed?
Is it possible to associate differents interest fees to differents products?
I developed new modules that control the number of installments with and without interest fees that are shown to customers. But I need to update customers orders with that information.
Thanks for your help.