MRP Demand Cancellation

Hi,

Does anyone encounter MRP Demand (with PO) is cancelled  when forecast is 
changed (decrease).  I enter the forecast 100 then run the mrp, MRP suggested 
100 demand with qty and dates breakdown of 12/15/03 qty 25, 12/20/03 qty of 75, 
i run the vendor sourcing and auto release to genereate the PO.  The PO 
genereated an order line of 100 with dates 12/15/03 qty 25 and 12/20/03 qty of 
75.

Then i run the mrp to reflect the generated PO.  When review PO is reflected.

Next i change the forecast reduce from 100 to 25.  I run the MRP again. When 
review qty 75 has an action status of CA - cancel.  And when i run the vendor 
sourcing and auto release schedule 12/20/03 qty of 75 is deleted in the PO.

Question:  What flag i miss to setup in production details or company profile 
that would not cancel the confirmed qty cause the qty has been converted into 
PO.

Thanks,

Sharon



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