How do I update PO delivery methods?

To update PO delivery methods

Go to:
My Payee Profile → Purchase Order Delivery Methods

You can create or edit delivery methods (email, fax, EDI, etc.).

If I update a PO delivery method, what happens?

Any updates to the method stored in your profile will automatically apply to all customers with whom you have shared that method.
If you wish to only update one customer with a new PO method you can do this in the customer table -> Manage -> Purchase Order.