"No specific FlyerTalk or Reddit threads document AIG code verification incidents. The code follows Marriott's general corporate rate policy. AIG is a large but relatively low-profile financial services firm; its ticker-style code is widely circulated but US properties rarely enforce. International properties (especially Asia and Europe) are more likely to ask. No documented denied-rate cases found specifically for AIG."

"I think the last time I was asked for proof was in a JW Marriott in Beijing. I have never been asked in the US or Europe. Without a business card or ID, you may have an issue. Maybe you can contact the hotels in advance to see what info they need. I don’t remember if LinkedIn is available in China so I would talk to your Corp Travel team to see what they can do. Good news is that hotels are so much cheaper in China compared to ROW right now. ."

"I can say, with absolute certainty, I've never been asked for a Corporate ID: only a business card. Despite working for a company towards the top of the F50 list, I am a remote employee. Remote employees are not given IDs in our company. When I do have to go to the office, I need to get a guest ID."