Solution : https://service.sap.com/sap/support/notes/1375125 (SAP Service marketplace login required)
Key words : 
utilize developers converting function modules, business behavior ofthe billing application, potential security issue exists, requires authorization object bef_meta, potential risk exists, authorization object bef_meta, billing engine framework, billing engine application, theproductive billing application, apply correction instruction
Related Notes : 
       
| 1394093 | Collective Security Note | 
| 888889 | Automatic checks for security notes using RSECNOTE |