Originally Posted by Starwood Lurker III

Starting in August, any outstanding Certificates will be updated from Category-based to points-based values in the new combined redemption chart and may be used for stays at Rewards or SPG hotels up to the points value displayed on your updated Certificate. For example, you will be able to apply a Marriott Rewards Free Night Certificate to an SPG stay, or an SPG Free Night Award to a Marriott Rewards stay. Ritz-Carlton Rewards Free Night Certificates can also be applied to Marriott Rewards and SPG hotels.

Best Regards,

Christina Zhou
Social Media Specialist
Starwood Hotels & Resorts Worldwide

[email protected]