Originally Posted by hnechets
That's interesting. When I don't get the concierge level, my one card is usually "keyed" so it will get me in. On the few occasions when it didn't, I went back down to the front desk and they "re-keyed" it so it would. I am only speaking of domestic USA Marriotts, overseas they may do it the way pinniped described as a matter of course.
It happens also in Europe, only key card to open the door of my room and the door of the lounge.