How can I see all the reservations I have booked?

From the Marriott.com home page, select “RESERVATIONS View & Manage.” Once you sign in using your Marriott Rewards number or email address and password, you can then click on "MY RESERVATIONS." The first three reservations will be listed. To see all of your reservations, click "View All Reservations".

You can also look up reservations by entering the confirmation number and your last name.