"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 haven't tried using discount codes w/ Hyatt previously but this is intriguing. Some of these codes are tied to various companies. Does anyone who has used these codes before know if Hyatt front desk staff ask for corporate ID upon check-in if a reservation is booked using one of these codes? For example, 99800 is linked to Daimler-Chrysler Purchasing..."

"Just wanted to let you know that I tried using this code at Hyatt Regency Istanbul, and the guy asked me for ID. I explained that I was a contractor, but he wouldn't buy it and requested further verification. I told him to just charge me the regular rate, and I would get reimbursed. It was only a 25 euro difference per day."