Update payment card details for sales order

Hi all,

Is there any function module or bapi which can be

used to update the payment card details for a sales order

The bapi_salesorder_creatfromdat2 is having the structure

CCARD which takes in this details , but what I really want is to change the already created sales order. The bapi for sales order change is not having any structure which allows passing this details.

Please can anybody give some inputs on it.

Regards,

Shibu Mathew.