User cannot change Delivery date desired on the grid, once to run MRP. Condition: Once to set a Max.order quantity, Purchase lead time, item coverage as following, -Set Default order settings Max.order quantity = 1.00 Purchase lead time = 7 -Set item coverage Minimum = 10 Reason: The date is changed to an earlier date, that with the related lead time need to start earlier than today, then the scheduling engine calculate the first possible date. So, this issue brings that it is increasing to unexpected working by user to recreate such an order manually. Customer cannot accept such a workaround. Because it could take up to an extra work load that user need recreate over a hundred of orders manually per day. Then, it would often lead to mistake in the operational personnel. If User forgets it, it would result in bringing much of business loss that Goods of the purchase order will not be delivered in the time. Ask: Please consider to add a feather like an optional setting of effect or not for scheduling engine.