"Apple (alt) Marriott code APC is a secondary Apple corporate code, alongside the primary APL code. Apple's primary code APL is documented as triggering heightened enforcement within 5 miles of Apple HQ in Cupertino — "hotels that handle hundreds of Apple travelers a week are intimately familiar with Apple corporate ID badges." The alt code APC may be routed through different GDS channels but Apple's code presence at Silicon Valley Marriotts is well-established. No APC-specific denial documented; enforcement pattern mirrors the primary APL code."

"I have been asked to show some proof couple of times. I normally show my corp id but credit card with employers name on it has worked, too. As would probably just showing my laptop with employer e-mail account or whatever. My impression has been they are happy with just about anything that proves I'm working for the company whose rate I use and why wouldn't they."

"I had to change my email to my personal email account. My IT sucks, I have had so many joe.smith1 to joe.smith9 at my corporate name dot Com. Why I like to get my folio in person and on my email. Miss a receipt and your expense report gets rejected. Only been asked once for corporate proff, but I am nice to the staff and explain what's going on before they get a chance to ask. IT still has not figured out how to link everything to Concur for hotels. And it's a huge company"