Solution : https://service.sap.com/sap/support/notes/482007 (SAP Service marketplace login required)
Key words :
table parameters type spec ref field optional short textcaccdpc, user exit customer-function '008', influence table accdpc, prerequisites table accdpc, solution table accdpc, function module ac_downpayment_charge, function module exit_saplv60b_008, attached advance corrections, payment clearing reason, payment clearing items
Related Notes :
460359 | Down payment in new year is settled in old year |
381348 | Using user exit, customer exit, VOFM in SD |
113347 | Down payment process. as of Release 4.0x (standard) |