This is in Bonvoy T&C:
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2.1 Earning Opportunities at Participating Properties
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2.1.d. Qualifying Stay. A “Stay" or “Qualifying Stay” means all consecutive nights a Member registers for, and personally pays and stays at any Participating Property, for which (i) the room is billed to the Member, or (ii) the guest room is direct billed to the company who has arranged payment for the Member’s stay that is not associated with a convention or group meeting.
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https://www.marriott.com/loyalty/terms/default.mi#earn