The Card Code field is used to submit the security code found on most credit cards, which is sometimes called CVV2, CVC2, or CID. Here are instructions on how to enable the Card Code field on your Virtual Terminal:
2: Click Settings in the main left side menu.
3: Select Virtual Terminal.
4: Locate the Card Code option in the Payment Information section. To make the Card Code field visible, check the box in the View/Edit column; to require it for all manually entered transactions, check the box in the Required column.
5: Click Submit.