Solution : https://service.sap.com/sap/support/notes/139890 (SAP Service marketplace login required)
Key words : 
additional key words online processing, online processing vf04/vf06, present collective note sums, related notes, corrections, prerequisites
Related Notes : 
       
| 202461 | VF04 - coll. billing doc/online in simulation mode | 
| 175645 | VF04 : Display variants | 
| 147896 | RV60SBT1 : Error message OO264 (status & is missing) | 
| 139891 | Collective note:Collective billing as of Rel. 4.5A | 
| 139888 | VF04 : Billing due list without selection |