"Mitsubishi's Hyatt code (11657) follows Hyatt's standard corporate verification pattern. FlyerTalk users report 50% ID check rate across Hyatt stays in Asia, mitigated by "self-printed business cards that worked 100% of the time." Mitsubishi is a major Japanese conglomerate with strong presence at Hyatt properties in Tokyo, Osaka, and Singapore. Park Hyatt Tokyo has specific documentation of requiring "badge, business card, and email confirmation" for corporate rates. Hyatt Place/House properties globally: essentially never check."

"I also see a problem where (I know our company has for certain properties) Last Room Available rates which come in at the corporate rate; its not for all properties but we do have a list of those where if there is one room left, they have to give it to us at the corporate rate; other places is a certain number go at Corp rate 1 then it goes to corp rate 2 etc"

"I was referring specifically to a corporate ID. I know international properties ask for passport. What I mean is that I have always been asked for both my corporate ID and personal ID every time I've used a corporate code at an int'l property."