"FlyerTalk documents Samsung codes as remarkable — one user reported 70% off at the Grand Hyatt Hong Kong. HotelCorporateCodes.com rates Samsung as "Sometimes" for ID verification at Hyatt. Hyatt's general pattern: Park Hyatt checks most frequently, Grand Hyatt and Regency occasionally, Hyatt Place/House rarely. Hyatt is described as "notorious for checking for ID," especially internationally. One user documented 50% ID check rate across Hyatt stays in 10 countries, mitigated by self-printed business cards which "worked 100% of the time.""

"I use MY job's corporate code when booking personal travel. Most companies have a list of which hotels they contract with also allow personal bookings. If you're improperly using a corporate code, the hotel can cancel your booking or change your rate at check in."

"We just have to book under our corporate rate in Concur regardless of rate. Example in Columbus, OH our 2 preferred properties are Hilton downtown and Hilton Polaris those rooms can be $400+ a night. If I book at the Hyatt House at $199-$225 also part of our general corporate rate off BAR it will tell me I’m out of compliance for not booking our preferred hotels even though they are more. I override this all the time but that’s how it works."