Solution : https://service.sap.com/sap/support/notes/823533 (SAP Service marketplace login required)
Key words : 
financials extension - ea-fin, cross-system solution, sap reference img, 'sap menu', menu options, transaction fb2e, terms fb2e, affiliated companies, read note 588364, transaction spro
Related Notes : 
       
| 809831 | Activation of the accrual engine | 
| 744759 | Missing Menu Paths in PP-PI as of release 470 | 
| 588364 | Prerequisites for activating extensions | 
| 534334 | Composite SAP note Install./Upgrade SAP R/3 Enterprise 47x11 | 
| 532499 | Activating several SAP R/3 Enterprise extensions |