https://userapps.support.sap.com/sap/support/knowledge/en/3320160
3320160 - MDG-M: Future price (ZKPRS) field property in UIBB Valuation Area Plant: Account | SAP...
You realize that the field of Future Price is not editable in the UIBB "Valuation Area Plant: Account" when you create the Material in MDG NWBC.