"There are countless stories of folks getting their IDs checked when using Hyatt corporate codes, and in some cases they needed either a special company letter or needed someone from the company to fax in their reason for staying there. In most cases, a business card is enough."

"(a microsoft corporate code would work as would any hyatt gov code that adheres to FTR)"

"I don’t really know how they truly enforce this. A lot of companies don’t even put the company name or brand on ID cards anymore due to security concerns (if you find a card on the ground it’s a lot harder to know where to use it). In 20 years of traveling for work I’ve only been asked for a form of ID one time, which was in Germany, and sending the front desk agent an email from my corporate email address took care of their concern."