After deploying the Outlook Add-in from the Exchange Server and installing the Outlook Add-In on client machines, the [My Meetings] and [ResourceFinder] button are not available in the Outlook.
The outlook version could be missing the needed patch which will not be installed automatically.
Download the patch and follow instructions from this article.
Applies to: RC 4.1+
Reference: TFS #193711
Knowledge base ID: 0254
Last updated: Apr 10, 2019