Checking in about a Globalist making a reservation for a friend.
My brother is Globalist, and he niece is going on a honeymoon. He'd like to book the room under his account so they get club lounge access and other perks associated.
He'd only do this on a rare occasion.
Can he add the his niece to the reservation, and they get the benefits?
I sometimes stay under my brother's Marriott Titanium account, and he adds me as a 2nd guest while chatting on the app during check-in without a problem, and benefits are extended to me.