SUMMARY ============ ISSUE DEFINITION ============ MRP is updating the plant or warehouse closed as delivery date in the planned order. Expectation is that Warehouse closed date should not be updated as delivery date in the planned purchase order by the MRP. warehouse calendar should be considered ================== CURRENT FUNCTIONALITY ================== Although it is true that the expected behaviour is that the delivery date of a planned purchase order is an open date both in the vendor calendar and warehouse calendar (or coverage group calendar), this was never supported by MRP . Documentation https://docs.microsoft.com/en-us/dynamics365/unified-operations/supply-chain/master-planning/supply-chain-calendars-master-planning#delivery-date-of-a-planned-purchase-order Delivery date of a planned purchase order The receipt date of a purchase indicates the date when you will receive the goods. It will be an open date in the calendar. The calendar that will be taken into account to indicate which days the purchase orders can be received are the following, in order from highest to lowest priority: 1. Vendor's calendar 2. Coverage group calendar 3. Warehouse calendar for the receiving warehouse