Budget Exceeded but no Error message Assign more than allocated

Hi Gurus,

I am stuck in a situation where the Error Message BP603 while creating a PO for a wbs at level 2.

IN cj30 , i found out that  Budget = 69500000 and assigned = 69950772

if i create a PO OF even .30 (thirty paisa) the budget exceeded amount = 450772.35, which is actually the diffrecene betweenn assigned and Budgeted values.

Now we are not able to raise any PO

Below is tolerance limit

please key in your valuable inputs.

Regards

Rohit