Solution : https://service.sap.com/sap/support/notes/128610 (SAP Service marketplace login required)
Key words :
additional key words va01, create data element 'menge_float', add field menge_f, sales order item, resulted production order, choose 'default field, short text 'quantity, sales order, data element, field label
Related Notes :
| 353541 | Delivery group correlation reduces production quant |
| 318394 | |
| 310878 | Static assembly: No order quantity |