MRP prompt cancellation for PR/PO due to demand changed

Question

Hi,
I have many cases recently where my MRP ask me to purchase parts via Purchase Order. I have complete and firmed my purchase order. But the next day, i found that the MRP ask me to delete this order as there is no more demand required.
Understand that there must be someone removed the requirement for the top parts and caused all components and raw material are now request to cancelled.
Questions: In SAP, is there any way that we can know from MRP (MD04/MD05), which requirement is being removed and caused all this cancellation?
What i can see now is that the MRP ask me to cancel the PO. But i do not know why this is being cancelled..
Appreciated your prompt reply.. Thanks..

Answer 1

I don't get your questio clearly.....
But as per my understaing of your que
The PR generated from MRP or Manual creation-- when you convert the PR to PO system will pickup the price from inforecord and info record can not be created automaticaly by the system for psicing
the inforecord will be cretaed first time when you create the PO from PR but it will not have pricing it is just updating the PO number in the info record
so you have to create the info record.
now suppose you want to copy the PR price to the PO than there is a funcitonlaity you have to activate
tcode is OMET
go here and check the adopt price check box than system will populate the button in the PR on valuation tab where you can select as gross price or net price than system will take this price in the Po.
in you case if suppose system is copying the last PO price to new Po becuse in your system the setting for defualt value for buyers is active that;s the reason you see that system copy the last po price.
if you dont want this than go to
SPRO-MM-Purchasing-environment data-defien defualt value for buyer
here on Price adoption tab you will see always copy
now if you dont want than copy the 01 to blank value and remove the always copy
Now use of PR release is not for the pricing but there is many other reqs for release procedure
noramly the PO would have release process activated if you have concern for pricing.
hope this will give you a clear picture