"Student (Enactus) Marriott code OXD is a student discount code for Enactus, a non-profit supporting student entrepreneurs. Student discount codes at Marriott require proof of current student enrollment — typically a valid student ID or university email verification. FlyerTalk's discussion of student hotel rates: "Student rates at Marriott almost always require showing a valid student ID at check-in — unlike corporate codes where enforcement is discretionary, student discount verification is fairly consistent across properties." The Enactus connection means participants must also prove program affiliation."

"I have seen many of my corporate rates with 6:00 same day cancellation. If someone were ineligible for that rate and asked for ID at checkin, I guess they could say I have some business cards in the car and then go and cancel the reservation before the agent changes the details."

"I do this frequently. They rarely ask for the ID, and when they do, I just provide my company badge. Never had any drama. Also, my wife works for the US Gov't and when travelling for leisure they often have a better rate than my corp. In those cases we book the Gov't rate and they always ask for ID on check in. She provides her ID and we get checked in."