Reserve Purchase Requisition

 Hi all,

     My question is after purchase requisition has been approved, the budget is reserved. Once PR creates to PO, I see the change in the reserved field (Shown in Requisition summary) to be unchecked. Pls kindly tell me the reason why this happen.

One more question earlier when create purchase requisition, if the budget is not enough the system will show error as Check Fund Fail But not if the budget is not enough, the error show as Check Fund completed with Error , Account summary fund fail .

I am confused because I have config the system to use as Summary Account since before.