Solution : https://service.sap.com/sap/support/notes/899394 (SAP Service marketplace login required)
Key words :
receive double requested quantities/dates, system immediately creates, system additionally copies, requested quantity/date, attached program correction, requested quantity, entered quantity, program error, quotation determination, dialog box
Related Notes :
| 881913 | Double schedule lines are created in case of quot.det. |
| 729868 | Double schedule lines after copying and configuration |