Solution : https://service.sap.com/sap/support/notes/356041 (SAP Service marketplace login required)
Key words :
additional key words sapmkauf, change thebusiness area, actual costs exist, business area, planned costs, internal orders, wbs elements, coas-gsber, screen 315cj02, wbs element
Related Notes :
| 514782 | WBS element w/ planned value or budget: Object class is gray |
| 511833 | Enter business area into order posted to |
| 507457 | WBS element with budget:Business area not changeable |
| 490499 | Business area no longer changeable after budgeting |
| 397799 | INFORMATION: CO-OM-OPA (Order & Project Accounting) |
| 95374 | Project System - organizational assignments |