Solution : https://service.sap.com/sap/support/notes/625170 (SAP Service marketplace login required)
Key words :
respective sales order item, cost-relevant change, directly produced assembly, extend subnetwork reason, assembly order, collective order, dependent order, static assembly, condition ek02, filled incorrectly
Related Notes :
| 529503 | Error message CO257 when extending subnetwork |
| 377640 | Termination CO684 when creating assembly order |