"Alibaba's Marriott code A7A is for the Chinese e-commerce and technology giant. Alibaba employees primarily carry Chinese company-issued credentials which Western hotel front desk staff are less familiar with verifying. FlyerTalk's corporate code thread notes that Chinese tech company codes at US and European properties face a different verification challenge: staff may request proof but be unable to assess the validity of Chinese corporate ID cards. Marriott's rate desk has documented Alibaba as a monitored account given the company's rapid growth and high travel volume. High risk due to systematic verification challenges."

"The hotels probably won't ask if you are a bonvoy member and have your company email on your account. If your reservation was booked thru a travel site with GDS link (like concur). Or if the rate is within 15% of the sell rate it's not worth the agro since aaa and qualified discounts are probably about the same discount rate as the corporate rate. However if you book High season/relatively low corporate rate, are staying over weekends don't have a history of stays on that corporate rate or are booking an event date like Superbowl you should plan on producing ID or proof of employment and be prepared to pay the retail rate for the room."

"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."