Hi, 

Generally, supplier payment order is a step in a payment process - actually it relates to multiple steps in a payment process.  Once a payment order is completed - it’s no longer available as a working item, something that needs additional work. 

If you want to cancel a payment that has already been completed - review the rollback functionality.  If you're not familiar with this - please see the help.  It’s very important that you understand the difference between rollback and partial rollback.  complete rollback affects cash, meaning cash is increased or decreased. With a partial rollback cash is unaffected- the cash moves to what we call a parked payment.  The idea is the cash left the bank and you're moving the supplier payment value from a given invoice to the parked payment where you would then apply that amount to another invoice. 

Best regards

Thank you very much. it is very useful and solved my issue.