Solution : https://service.sap.com/sap/support/notes/92440 (SAP Service marketplace login required)
Key words : 
additional key words 20c_hp4  20d_hp1   jva, symptom sapf123w creates fi documents, mm integration manager, unbalanced jv documents, jv documents, fi document, reference year, clearing line, automatic sign, program change
Related Notes : 
       
| 118177 | SAPF124/SAPF123W: 672(F5)/update currency inconsistent | 
| 100283 | SAPF123W: IS-OIL error messages G4017, G4024 | 
| 96460 | SAPF123W: Clearing entries, G4024, IS OIL | 
| 93554 | @3Z@ 4. collective oil fixes/transports after HP34 |