Solution : https://service.sap.com/sap/support/notes/338325 (SAP Service marketplace login required)
Key words :
additional key words eps, symptom error message cj418, program error, maintain' bapi, transaction cjv4, transfer project, simulation version, advance correction, implement note 312041, 'workbreakdownstruct
Related Notes :
| 536137 | CJV4, BAPI_PROJECT_MAINTAIN: Expand / change structure II |
| 363235 | EPS: WBS hierarchy allowed with several roots |
| 363066 | EPS: No changes to WBS hierarchies - error CJ468 |
| 312041 | EPS: WBS hierarchy change tho' operatn not allowed |
| 180417 | Open PS for Microsoft Project |