Solution : https://service.sap.com/sap/support/notes/514782 (SAP Service marketplace login required)
Summary :
In SAP, issues arise when attempting to modify the 'Object class' field of a WBS element if it has recorded planned or actual costs and revenues, or if there's an established budget or billing plan. Such restrictions are exacerbated due to the field's usage confined to the reconciliation ledger, thus necessitating validations exclusive to actual WBS values for accurate input status control. SAP Notes 356041, 391761, and 507457 (Release 4.6) act as prerequisites, while program adjustments are advised for resolution.
Key words :
billing plan exist, 'object class' field, object class, wbs element, longer change, planned costs, planned revenues, actual costs, actual revenues, reconciliation ledger
Related Notes :
| 821790 | |
| 517253 | |
| 507457 | WBS element with budget:Business area not changeable |
| 391761 | |
| 356041 | Business area no longer changeable after planning |