Solution : https://service.sap.com/sap/support/notes/154753 (SAP Service marketplace login required)
Key words : 
additional key words ea70, volume correction factor procedure, service function modules, authorization object s_tcode, transaction code determines, internal transaction code, transaction code, gas procedure, authorization check, maintenance transactions
Related Notes : 
       
| 153701 | Collective note IS-U/CCS 1.2 - Add-on patch 005 |