"Daimler Benz's Hyatt code (99800) is for the Mercedes-Benz parent company. Daimler has major presence in Stuttgart, Germany and significant US operations in Alabama (Mercedes-Benz US Manufacturing). Hyatt's European enforcement pattern applies: Park Hyatt Frankfurt/Munich/Stuttgart carry higher verification risk. FlyerTalk's Hyatt thread: "In Europe and some parts of Asia, proof has been requested 100% of the time." US domestic Hyatt Place: essentially never checked. Daimler later restructured as Mercedes-Benz Group AG."

"I don’t really know how they truly enforce this. A lot of companies don’t even put the company name or brand on ID cards anymore due to security concerns (if you find a card on the ground it’s a lot harder to know where to use it). In 20 years of traveling for work I’ve only been asked for a form of ID one time, which was in Germany, and sending the front desk agent an email from my corporate email address took care of their concern."

"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."