Microsoft code name of the day: Ibiza. Microsoft code name of the day: Ibiza. Best guess on what it is: A metadata layer enabling data synchronization online and offline across multiple Microsoft and third-party products and devices. Meaning/context of the code name: Ibiza, one of the Balearic Islands located in the Mediterranean Sea, and belonging to Spain, is yet another island code name. Definitely seems like there's a tendency inside Microsoft to go with island names, as of late.