"Siemens (16605) appears in the FlyerTalk Hyatt discount code master list alongside GE, IBM, and Samsung. One contributor wrote: "GE generally works best, followed by IBM, but sometimes the Siemens and Samsung rates will amaze you — 70% off at the Grand Hyatt HK with Samsung." A user claiming ~40 uses across 10 countries with similar tech-company codes: "asked for ID about 50% of the time" — primarily at Park Hyatt and Grand Hyatt properties in Asia. Hyatt Place and Hyatt House in the US: essentially never checked. Park Hyatt properties in global capitals: near-certain check."

"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."

"I believe it's depends on the hotel. Hyatt will not verify your job status, as long as you made the bookings. However hotel has right to check your badges if they wish. it is very unlikely to harm you, the worse they can do is request you to make full public rate payment. I stayed at Conrad Shenzhen last year with my friend. He kept using his old company's rate code to make Hilton hotel booking even though he has already left. The front desk asked him to verify but he couldn't, so we made full payment in the end, no drama."