Solution : https://service.sap.com/sap/support/notes/509420 (SAP Service marketplace login required)
Key words :
menu option 'change net quantity', missing change inquiry, change net quantity, attached program corrections, changed header quantity, order header agrees, terms process order, component quantities occurs, net quantity, order quantity
Related Notes :
708809 | Incorrect component quantities when changing scrap |
164338 | CO01,02: Quantity adjustment for product unit |