"From Fishbowl (professional network used heavily by Big 4 staff): "How do I use the Acc or E&Y codes at Marriott and get around the ID check piece?" — confirming that ID checks are a well-known friction point for consulting firm codes. The thread attracted replies suggesting telling the front desk "you're a contractor doing work for them." hotelcorporatecodes.com lists EYC with 10-18% discount and verification status "⚠️ Sometimes." FlyerTalk's Marriott enforcement thread confirms consulting firms get checked more often at full-service hotels, but select-service properties rarely verify. US domestic: ~10-20% of stays checked; Europe/Asia: significantly higher."

"My last couple of corporate RFID cards had no company name on them for security purposes. My current company doesn’t do business cards. I use my Bonvoy card for corporate travel to get the points. I’d have to write them an email standing at the check in desk, I guess."

"I mean, it depends on the size of the hotel. Having one person on night shift for a Fairfield isn’t uncommon. The better hotels have more people working at front desk even at night simply due to the size and brand. I’d however say though, if the property has been notified of the guest’s check in time in advance, and part of deal of getting into night shift is to check people in at unusual hours like that, then it certainly does not sound right to me that the front desk agent cannot have the meal earlier or later out of that many hours of the shift."