Solution : https://service.sap.com/sap/support/notes/1341567 (SAP Service marketplace login required)
Key words : 
software component   fi-ca                          fi contract acc, terms fp-dtrans reason, runtime error convt_codepage, manual pre-implement, user parameter 80nuni, -unicode data transfer, parameter 80nuni, data transfer, program error, solution implement
Related Notes : 
       
| 1334734 | |
| 1312142 | Data transfer: Runtime error CONVT_CODEPAGE |