We couldn't process the request because the user '{0}' hasn't signed in to Outlook Web App and selected a language and a ...

We couldn't process the request because the user '{0}' hasn't signed in to Outlook Web App and selected a language and a time zone. Ask the user to do this, or, if you are a member of the built-in Organization Management or Help Desk role group, you can use Window PowerShell to select a language and time zone for them.
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