"Sony's Marriott codes (SON and 12698) appear in FlyerTalk's Marriott corporate code compilations. Sony has major US presence in New York (Sony Pictures, Sony Music, Sony Electronics) and several Marriott full-service properties near those offices. hotelcorporatecodes.com lists SON as "⚠️ Sometimes" with 10-15% discount. Japanese multinational codes tend to face higher scrutiny at international properties. No specific SON denial documented in FlyerTalk. Properties near Sony's Culver City (entertainment) and Park Ridge NJ (electronics) offices carry higher verification risk."

"I think the generic 'show corp id' designation means show the company business card. I think a lot of us don't have them or, if we do & we're not going to an office that we'd need to show them, leave them at home. I worked for some F500s that didn't require corp ids with shiny smiling faces on them & others that did; same with company credit cards. All, however, provided biz cards when working for them."

"I occasionally try to get the corporate rate for a company I'm visiting in the area (for sales/consulting). Only once has a front desk clerk asked me to prove my eligibility, and she was satisfied by me giving the name and telephone number of the person I was visiting."