"Pfizer holds two Marriott codes (4899 and PFZ, with PFE as a third variant). This code duplication reflects Pfizer's large managed travel program. FlyerTalk notes: "In the US and Canada, never asked to show a work badge. Overseas — they tend to follow the rule by the book." Pfizer's dual-code structure suggests a formally managed travel program that may share usage data with Pfizer's travel desk. Risk is medium — consistent with other pharma codes at full-service Marriott properties globally."

"I work front desk and it seems like management is really pushing to check IDs for any special rate. Personally im lazy and also don’t care that much to start a confrontation so I only verify govt rates and employee rates, but yes it is being enforced more harshly. Corporate rates I guess are easy to find online and thus abused. Again, I don’t care that much because they’re still pricey anyway !!"

"I occasionally try to get the corporate rate for a company I'm visiting in the area (for sales/consulting). Only once has a front desk clerk asked me to prove my eligibility, and she was satisfied by me giving the name and telephone number of the person I was visiting."