PR with FM Commitment Item not to reverse during PO with Inventory G/L

Question

Hi,
I am facing a problem with FM Budget during Procurement.
We have create Purchase Requisition with Expense G/L, Cost Center and Activity (I/O) (to hit FM Budget).
During PO, we change Expense G/L with Inventory G/L (by removing 'f' from Acct Assignment Cat). Once we save PO, then the Expense Budget that was reduced at the time of Purchase Requisition is reversed.
Can anybody let me know how this reverse posting at the time of PO can be stopped in this scenerio.
We want that if we removed the PR expense G/L at the time of PO and replace the same by Inventory G/L, then the budget that was reduced at Purchase Requisition should not be reversed.
With Regards
Rahkes

Answer 1

Thanks for your quick reply.
We have implement Budget on Cost Element and Cost Center through Fund Management at Procurement Level (it means that if budget amount is exusted then there will be no procurement)
Here I am giving an example:
For Material PO, we have created Purchase Requision with Budget Cost Element and Cost Center (to hit budget).
Once the PR is save, Budget is impacted.
Now we create Material PO with the above PR reference by deleting 'f' from Accont Assignment Category which deletes Cost Element and Cost Center from Account Assignment.  Once we save PO then the system reverse the budget amount on Cost Element and Cost Center which was impacted at the time of PR.
We want that at the time of PO, the Budget amount should not be reversed.
Regards
Rahkes