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Unsupported API version error when trying to use the Microsoft Outlook Task Viewer Add-in

Symptoms

When configuring the Outlook Task Viewer Add-in in Outlook, the following error occurs:

The API version (1.2) required by this app isn't supported by the Server version that you're connecting to.

Cause

The Outlook Server you are trying to install the Task Viewer Add-in on is not on a version of Outlook supported by the Task Viewer Add-in for Microsoft Outlook.

 The Task Viewer Add-in for Microsoft Outlook is only supported for:

  • Outlook Online (all Appian supported browsers excluding Edge)
  • Office 2016 for Windows
  • Office 2016 for Mac

Action

Upgrade to one of the supported versions of Outlook and use the instructions provided in the Task Viewer Add-in for Microsoft Outlook documentation to configure the add-in.

Affected Versions

This article applies to Appian version 17.3 and above.