"BOA code is referenced alongside DTC/ACC/IBM as commonly shared codes among consulting and finance professionals. If you are caught, the property can raise your rate to the current rack rate. Some contracts call for a usage report back to corporate with names. Verification more likely at full-service urban properties, but US domestic incidents are rarely documented."

"I have been a Platinum for a few years (which implies I frequent Marriott properties on a regular basis) and up until tonight was NEVER asked for any id to justify a corporate rate or discount (I legitimately use a few corporate rates I am entitled to and AAA rates)"

"I used to China often for work and book directly. I’ve never been asked, if you have a sticker or they can see something with the company logo they assume you work there. I’ve only been asked in Korea and was a hot mess until a manager stepped in."