Rental car reservations are managed through your personal Booking.com account or app, not within Booking.com for Business.
To manage, change, or cancel your rental car booking:
- Access your Booking.com account.
- Click on your profile, located at the top right of the page, then “Bookings and trips”
- Select the reservation you want to modify or cancel, and proceed with the changes.
You can also visit the Booking.com Help Center for further assistance and more information about car rentals.