Solution : https://service.sap.com/sap/support/notes/1473369 (SAP Service marketplace login required)
Key words : 
incorrect currency symbol, currency symbol, currency issues, symptom workbook, fep 6 reason, prerequisites due, program error, install  'bw 3, 5 frontend patch 11, 5 frontend patch 3
Related Notes : 
       
| 1466032 | |
| 1413155 | |
| 1118754 | NetWeaver 04 / BW 3.5 Frontend Patch delivery schedule |