"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 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."

"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."