Solution : https://service.sap.com/sap/support/notes/137743 (SAP Service marketplace login required)
Key words :
error message f5568, additional key words, payments made, final settlement, fiscal year &, payment clearing, payment request, fiscal years, program correction, ac_down_payment_charge
Related Notes :
| 113347 | Down payment process. as of Release 4.0x (standard) |