Solution : https://service.sap.com/sap/support/notes/652201 (SAP Service marketplace login required)
Key words :
payment transaction' option, rfc_error_system_failure payment card, payment card, payment directly, terms rfc_error_system_failure, internet user, credit cards, pay invoices, confirmation screen, 'payments' screen
Related Notes :
650068 | Composite SAP note: SAP Biller Direct 2.0 Support Package 01 |