Peoplesoft integration with Western Union

Hi Peoplesoft Experts,

Background: We are implementing our new Canada business unit and currently majority of their payments are done via western union. Users are login in their system to pay their vendor bank accounts and do cash transfers.

Anyone had an experience where you automate payments done via Western union?

Do you set them as intermediary banks/accounts and generate payment files via financial gateway? If not, how do you record and execute the payment in Peoplesoft?

Any idea or past experience are very much welcome. Thank you so much for the help as always.

Thank you