In order to put or check the guest Credit Card details open the reservation window and go to Reservation Details tab or Guest Details tab. There you will find a button Show Credit Card Details:
FrontDesk Master receives credit card details from portals:
The credit card details are kept in the system until two weeks after the reservation's check-out date; after that, they are removed from the system.
In case the CVC is missing in FDM, you may retrieve the information by contacting your Account Manager (or Customer Service Team).
What information the system receives from each portal