Electronic Payment partially taken - how to reconcile in Cash Managment?

Re: Accounts Payable

My organization started sending electronic payments through a banking partner, and those payments are processed by the vendor using an assigned virtual credit card number. The invoice numbers and dollar amounts are included with the payment, but occasionally we've had vendors only charge a partial amount.

We have never had to reconcile a payment for A/P in Cash Management that was not paid in full. Is there a document available to walk us through that process? I'm the A/P superuser and I have maybe 2% cash management experience; and our cash management superuser is very new with no prior Oracle experience. Any help is appreciated.