"Nike's Marriott corporate code NKE is listed on corporate code sharing sites but has no documented FlyerTalk or Reddit thread specifically discussing verification experiences. Nike is headquartered in Beaverton, Oregon; Marriott properties in the Portland metro area may be more familiar with Nike employees. The NKE code is less frequently discussed than Boeing or ExxonMobil codes, suggesting lower community awareness and potentially lower audit frequency. General Marriott enforcement in the US is well under 5%."

"I think the last time I was asked for proof was in a JW Marriott in Beijing. I have never been asked in the US or Europe. Without a business card or ID, you may have an issue. Maybe you can contact the hotels in advance to see what info they need. I don’t remember if LinkedIn is available in China so I would talk to your Corp Travel team to see what they can do. Good news is that hotels are so much cheaper in China compared to ROW right now. ."

"FlyerTalk community specifically notes the MMM code as "the go-to code for the Minneapolis/St. Paul area, described as extremely reliable at local Courtyard and Residence Inn properties, with a low risk rating." One user documented using an IBM rate for 14 years at 80-100+ nights annually and "never once being asked for an ID." Another stayed 500+ nights and was never asked. The 3M code is regionally well-known near 3M's Minnesota HQ."