"UPS' Marriott code UPS is a three-letter ticker code for the package delivery giant. hotelcorporatecodes.com lists UPS as "⚠️ Sometimes." UPS HQ is in Atlanta GA — Marriott properties near Airport and Midtown Atlanta encounter UPS employees regularly. US domestic Marriott: select-service essentially never checks; full-service occasionally. No UPS-specific verification denial documented in FlyerTalk. The recognizable three-letter ticker code circulates in public compilations, increasing community awareness."

"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 don't do mobile check-in if I'm wanting to upgrade. I check the app before I go in to see if any suites are available to book during the duration of my stay. If there is I just say "Would it be possible to get upgraded to an available suite with my platinum benefit?". Of course this is typically at the hotel that I stay in about once a month for 3 day at a time for work. The front desk pretty much knows me and know that I am fairly low maintenance."