Solution : https://service.sap.com/sap/support/notes/209739 (SAP Service marketplace login required)
Key words :
additional key words eps, wbs element, existing project, status 'frei', status 'eorf', program error, solution implement, advance correction, bapi_project_maintain, wrokbreakdownstruct
Related Notes :
| 536137 | CJV4, BAPI_PROJECT_MAINTAIN: Expand / change structure II |
| 310509 | CRM usability of the R/3 project system |