Solution : https://service.sap.com/sap/support/notes/451630 (SAP Service marketplace login required)
Key words :
system displays error message cy450 'planned order &1 operation &2, alternative sequence cm25 reason, planned order, automatic sequence change, program error, alternative sequence, terms dispatching, related note 356120, solution implement, program correction
Related Notes :
| 356120 | Planned order:refnce.operation set referenced several times |