Credit Check hold failure

[naresh.apps11i]

Hi Guys,

Supplier org had set up credit limit & Order credit limit for a Customer X as $100000 and $35000 respectively.Supplier org had done all setups for Credit hold n Credit check rule.Now customer asked supplier to ship goods of worth $110000, user has entered SO and try to book the order.but Credit hold has not applied ,order has been booked.
Now how do u debug this issue.?

I am waiting for favourable reply at the earliest possible.

Regards,
Naresh