Solution : https://service.sap.com/sap/support/notes/182417 (SAP Service marketplace login required)
Key words :
reference field opt pass shorti_xblnr, import parameter type sp, numberexport parameter type spec, billing plan dates occurs, payment clearing posting occured, reference type pass, billing plan date, additional key words, function module sd_downpayment_request_read, abap/4 function library
Related Notes :
| 368599 | Incorrect clearing of down payments |
| 367797 | Incorrect clearing of down payments fr Release 3.1 |
| 350993 | Down payments from Release 3.x are not cleared |
| 153559 | Incor.down paym.amnts.w.down paym.requ.fr. Rel.3.x |
| 113347 | Down payment process. as of Release 4.0x (standard) |