Is it possible to post a payment to a vendor without attaching it to a purchase order?

Hi,

So, we have wired a payment to one of our overseas vendors and later cancelled the order. We are now left with a payment sent to a vendor that we want to use for future orders.  Which brings me to my questions. 

Is it possible to just post a payment to a vendor and have it on account? And then at a later time apply it to a purchase order?  

I have previously tried creating a Quick Check to just post the payment and then trying to apply it to an open purchase order but the system wouldn’t allow it.  Selecting Quick Check was not an option anywhere. I ended up voiding the quick check.  Is there something that I’m missing in this process?

Any help on this issue is greatly appreciated!

Thanks in advance. 😊