Some random users experience a weird error while using Who to search for other employees within the organization:
Sorry, it looks like your Exchange mailbox has not been set up yet. Until it is, I won't be able to find the info you need. Your IT admin should be able to help you fix the issue. (Error reference: Legacy-Operation-Id-44a11a69-943f-41aa-8cb3-88ff695e35f4)
The error occurs at random times, I couldn´t find any logical explanation for their occurence.
Does anyone else experience with that? Is there some fix?