Solution : https://service.sap.com/sap/support/notes/149647 (SAP Service marketplace login required)
Key words :
additional key words vf01, error ff704 occurs, billing document, payment clearing, payment request, prerequisites, note 97288
Related Notes :
| 113347 | Down payment process. as of Release 4.0x (standard) |
| 97288 | Down payment processing with Tax Jurisdiction Code |