The virtual terminal allows merchants to process charges against an order after it's already been placed.
The virtual terminal provides a way to process payments on placed orders that do not require viewing the full credit card details (this is part of PCI-Compliance). This feature eliminates the requirement to move orders to the Accounts Receivables department in order to facilitate payment processing .
Location
The Virtual Terminal button is located along the right side of the Billing tab of the order editor. Navigate to:
Locate the order desired via the search (filter) method.
Once you have your order in view, click the edit "Customer Information":
The next screen will display the Billing information for your order Editor. You will find the Virtual Terminal button on the right side of the tab:
Clicking on the virtual terminal button will take you to the page where you will enter in the details of the transaction:
You'll fill in the "Amount" field with the amount to be charged and you'll probably want to include a comment describing the charge and why it was processed using the virtual terminal.