Solution : https://service.sap.com/sap/support/notes/1437818 (SAP Service marketplace login required)
Key words :
function module bapi_procord_change, form routine order_change, order combination reason, combined process order, process order, order combination, combined order, original order, terms mill_oc, change quantities
Related Notes :
182696 | WM:Adjust quant.of comb.component w.quant. change |