Solution : https://service.sap.com/sap/support/notes/1425698 (SAP Service marketplace login required)
Key words :
delete schedule lines properly, /sapapo/sdorder_del report, date range selected, terms livecache reason, selection fields, program error, program corrections, prerequisites
Related Notes :
| 553476 | Composite SAP note: Report /sapapo/sdorder_del |