Credit Check failure Hold not applying on Sales Order

Hi All,

Please provide some pointers for the below scenario.

At Site level, Customer has Credit Limit and Order Credit limit of 250$ each.As long as I am entering Sales Orders of amount lesser than 250$  i am able to book them sucessfully without any Credit Hold.How is it possible?

For example : Order 1 (200$).It did not go for hold.As expected

Order 2(100$) did not go for hold aswell.Whats reason for it.It should have gone for Credit hold.Because the available credit limit should be 50$ for Order 2.

Have checked necessary setup which looks ok to me.Like,OM Order Type  Defininition>Credit rule at Booking.Credit Check has been enabled at Customer Site Level.Payment term has also credit check.