"The code carries a community-noted ID check status of "Sometimes." Some Hilton properties — particularly in London — began requesting corporate ID when using discount codes in 2022–2023. One user said: "Rule was show a company ID card, or pay the full walkup rate." Another noted they had never once in 10 years been asked for ID before this recent enforcement change. Properties near Seattle Microsoft HQ are flagged as significantly more likely to verify."

"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 don't know what will happen if these hotels, car rental companies, or other providers start asking for corporate identification. It seems problematic. Hopefully it will be that only a few locations, of a few brands, are demanding identification and for a specific reason."