I have added a new property "Initials" to my User Profile Synchronization Service and mapped it to a property from AD. That works and the property gets properly imported into user's profiles. I have even managed to successfully show it in search results, however I still cannot search for it specifically.
For example, if I type in "Initials:RSA" my name comes up in search.
That's great but I'd like to just be able to type "RSA" and see the same result.
What am I doing wrong?