Solution : https://service.sap.com/sap/support/notes/1412071 (SAP Service marketplace login required)
Key words :
reference order [transaction ko01], master data fields, model order [kom2], order type [kot2], single settlement rule, settlement cost element, reference order, cost element, internal order, settlement light
Related Notes :
367820 | INFO: KO01 Create Internal Order: Transfer default values |