To use the split of credit and debit cards via DirectLink, you need to include the CREDITDEBIT parameter in the hidden fields you send to the orderdirect.asp page.
||"C": credit card
"D": debit card
This field has to be included in the SHA-IN calculation.
Related error: When the buyer selects the debit card method but next enters a credit card number, an error code will be returned: "Wrong brand/Payment method was chosen".
For more information, go to DirectLink.
If the payment is successfully processed with the CREDITDEBIT parameter, the parameter will also be returned in the XML response, and/or can be requested with a Direct Query.
However, whereas the submitted values are C or D, the return values are "CREDIT" or "DEBIT".
You will also find these values in transaction overviews via "View transactions" and "Financial history", and in reports you may download afterwards (cf. Reporting).