Solution : https://service.sap.com/sap/support/notes/139765 (SAP Service marketplace login required)
Key words : 
additional key words, attached advance correction, problems occur, applied note 102468, note 139660, prerequisites, otherwhise, precondition
Related Notes : 
       
| 139660 | Interval scales in the billing document | 
| 113526 | Rounding problem for interval scales | 
| 102468 | Interval scale |