Solution : https://service.sap.com/sap/support/notes/379496 (SAP Service marketplace login required)
Key words :
additional key words oko6, attached source code corrections, change cost element groups, cost element groups, cost element intervals, cost element intervalswhich, general performance problem, source level, change mode, cost elements
Related Notes :
412907 | Allocation structure: Settlement cost element not saved |
132901 | Performance problems in the allocation structure |