"NEC's Hyatt code (16733) is for the Japanese electronics and IT company. Hyatt Asia-Pacific enforcement is near 100% at Park Hyatt and Grand Hyatt properties. NEC has significant presence in Japan, where Grand Hyatt Tokyo enforces verification consistently. A FlyerTalk user with 40+ Hyatt stays across 10 countries reported 50% ID check rate overall with Asia being much stricter. NEC employees in Japan recognize Park Hyatt as a standard business travel tier, and staff there are similarly familiar with NEC employee credentials."

"I know that my former employer, a very large non US-based multinational company (I am not sure if US-based companies are more careful due to liability issues etc.), doesn't really care whether or not the person using its hotel corporate rates (worldwide agreements with 2 different large hotel chains) is an employee. In fact the company secretly hopes that others (non-staff) use its corporate rate. The name of the game is volume and the more the volume the better the company's leverage on the hotel. That is why it is usually the hotels who insist on asking for company IDs or business cards (which I suppose anyone can print ... though I am not suggesting that FTers should go this route)."

"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."