Payment Questions

Hi,

I have a couple of questions relating the payments;

We are on R12.1.3 and having hte below things to get clarified.

01) I did a payement (using both payment manager and quick payments). However what I noticed is that the supplier didn't have a bank account assigned at the suppilier header level as well as in the site level. However it allowed to make the payment agaisnt the supplier.

My question is how it allowed to make the payment, being it an "Electronic" payment without an supplier bank account?

02)The other question why isnt it mandatory to have a payment document related to the bank account ? I was able to make payments even without a payment document, however an automatic number is generated.