Solution : https://service.sap.com/sap/support/notes/910298 (SAP Service marketplace login required)
Key words :
source code corrections, goto wbs overview, level 3 wbs element, level 2 wbs element, level 1 element, wbs element, affected wbs, symptom open, project builder, project definition
Related Notes :
| 149698 | Hierarchy inconsistency in the project |