Solution : https://service.sap.com/sap/support/notes/409876 (SAP Service marketplace login required)
Key words : 
additional key words process order, incorrect settlement rules, process order, production order, order item, order header, settlement rule, header material, material list, component overview
Related Notes : 
       
| 551926 | Program termination ILLEGAL_OBJART in cost analysis | 
| 507248 | No credit generated during standard cost estimate | 
| 424818 | Order without material - co-product appears twice | 
| 416715 | Preliminary costing of process order or production order | 
| 401414 | Order without material - settlement rule | 
| 386138 | Incorrect delivery status according to GR posting | 
| 381938 | Incorrct dely status for manufacture of co-products |