Open the Store
The most convenient way is to simply open Outlook Desktop app and open the Store via the button in the top toolbar.
Install the Add-in
In the Store search for "OTJ" and you'll find OTJ Jira for Outlook.Click on Add button
OTJ Jira for Outlook menu will be available in Outlook Ribbon
That's all! Now you can simply Login and Start Enjoying OTJ Jira for Outlook.