Solution : https://service.sap.com/sap/support/notes/428430 (SAP Service marketplace login required)
Key words :
mass change boms, define parameter effectivities, engineering change management, parameter effectivity reason, parameter effectivity, change number, symptom refer, transaction cs20, terms cs20, program error
Related Notes :
| 452816 | CS20: Unchangeable usages are selected |
| 431612 | CS20: Consideration of parameter effectivity |
| 417962 | CS20: Mass changes of BOMs with validity parameter |
| 180686 | CS20: Basic note for new version |