"McKesson's Hilton code N9890367 is for the pharmaceutical distribution giant. McKesson HQ is in Irving TX (relocated from San Francisco). Healthcare sector codes at Hilton carry moderate enforcement risk — similar to pharma company codes. Hilton's London thread documented systematic enforcement for corporate codes; McKesson has UK operations. US domestic Hilton: 20% general verification rate. No McKesson-specific denial documented at Hilton, but corporate contracts with major pharma distributors are closely monitored."

"One thing I am curious about is whether the hotel CRM shows the booking channel. Most true corporate travel is booked through something like Concur, AMEX GBT, CWT, etc. If the agent sees the booking come through one of those channels with a person's name on it and then gets a card or photo ID (not corporate ID) from said person, it's a pretty low fraud risk. But if it is a reservation through the hotel's channels using just a typed-in code, then I'd think they would have reason to be more strict in seeking proof of affiliation."

"I was asked for my work ID when checking in at Hilton Tokyo in June on a corp rate."