"One FlyerTalk user reported using the IBM corporate code for 14 years, 80–100+ nights a year, and never once being asked for ID. However, Newark Airport Marriott religiously asks for ID, requiring a letter from IBM stating you are a legitimate contractor. Consultants who tried to use a former employer's IBM code and couldn't produce valid ID were charged the full going rate of ~$300 instead of the corporate rate of ~$100."

"I am very rarely asked to prove my eligibility for a rate...but they have every right to ask and if you can't produce it, you will be re-rated to the current rate, which is often even higher and there is no guarantee points rooms will be available. Doing online check in rarely helps this as most properties don't actually do online anyway - especially to people who are not returning guests to the property or elite. You are taking a gamble. One that is likely to be fine. But understand you are intentionally breaking the terms of the bonvoy program and if someone really cared, there can be consequences."

"I regularly stay at a renaissance once a month on our DTC rate and have done mobile check in but always end up at front desk. One time the front desk was like oh. We know you as you have been coming regularly, but I need to double check your id. I think it’s because someone shared it online and now it causes random checks for rest of us."