"The Hyatt BP code does not appear in any specific FlyerTalk verification-failure thread. Hyatt's general verification framework applies: Park Hyatt properties are the strictest, with documented cases of guests threatened with rack rate conversion (e.g., "they made me find proof of eligibility or they were going to charge rack rate" at Park Hyatt Tokyo). BP is a high-name-recognition company whose code circulates broadly online, increasing exposure risk."

"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 guess I just don't see this. I'm not saying rates never changes, but if it really changed every time someone booked a corporate rate, then the rates would change constantly. I can't say that I see this too often or ever. Also I doubt there's enough people doing this to have a huge effect on overall occupancy anyway."