Do you have to START your stay by the expiration date (check-in date) or COMPLETE your stay by the expiration date (check-out date)?
Hi and welcome to the Insiders Community. When using the Marriott Rewards Certificate the date on the certificate is the last day that certificate can be used for a free night. For example if you have a certificate that expires on Sunday June 1st then that Sunday is the last day that certificate can be used for the free night.
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