Booking Marriott 7-night Marriott Reward Cert with SPG?

Discussion created by running26 on Jul 1, 2018
Latest reply on Jul 2, 2018 by yogib

Would anyone know how to book a Marriott 7 night (category 9) Rewards Certificate at an SPG property?  Both Marriott and SPG reps seem at a total loss to answer this question.  And neither know how to determine which SPGs are category 9 or less for this award.  This award was part of Marriott redemption for airline points + 7 nights at the category selected. Thanks!