Purchase Order Rescheduling

Hi All,

I was wondering how other companies handle this situation. We run MRP and create purchase orders two months before the date the items are due for production.

When we have a major Schedule Change, Supply Chain would like to update all of the purchase orders by Lot with the new scheduled dates.

So we have a custom program that calculates the difference of the old request date in the Customer Order file and the New Schedule date they enter on the screen. Then when it calculates the number of working dates between those two dates it adds or subtracts that from the purchase orders due & vendor delivery dates. Then they go into Customer Order and update the request date to the new date but we are thinking about putting logic in our Delivery Date Change by Lot program. Not sure if that is a good idea?

So I'm just wondering how other companies using BPCS handle Schedule chang to Purchase Orders and Customer Orders.

Thanks in Advance.