available amounts

hi,

i got the below from forum:

"In FBZP we have to maintain compulsorily for the available amount for our house bank. then only u can make the payment to vendor. otherwise it is not possible.

Once u maintain the available amount limit, then only house bank will provide payment to vendor for the invoice which u have created from them during the payment thrugh F-53 or F-58 or F110. Othewise it will not allow payment to vendor."

But in my FBZP, I do not maintain the particular house bank available amount yet I still able to make payment. Why?

thanks