When trying to add a user from an organization other than mine to a group I own, I entered his ArcGIS Online user name, something like: Bob.Smith_AnOrg to try to invite him to a group. The only user who appeared was named just Bob. I thought perhaps I had the correct user since my search had been so specific, but I was not sure. It would have been better if no users had appeared or if it was a way to click on the user for more information so I could more easily see Bob was the wrong guy.
