Troubleshooting: outlookIdentityToken error when using Workfront for Outlook
IMPORTANT
Microsoft is in the process of disabling support for legacy Exchange online tokens, which are currently used by the Workfront Outlook add-in for authentication. This change by Microsoft has already started affecting customers and will continue to roll out in phases through October 2025.
- After Microsoft fully disables these tokens, the Workfront for Microsoft Outlook integration will no longer function.
As part of this change, Microsoft has made the decision to change the way tokens are re-enabled. After June 30, 2025, admins will no longer be able to re-enable tokens themselves—only Microsoft Support can grant exceptions. On October 1, 2025, legacy tokens will be turned off for all tenants. Exceptions will not be granted.
When using Workfront for Outlook, you may see the following error:
Unexpected error
Unable to get the outlookIdentityToken
To resolve this error, you must enable Microsoft 365 legacy tokens for for your organization. Because this must be done in Microsoft 365, Workfront cannot enable these tokens for your organization.
For instructions on enabling Microsoft 365 legacy tokens, see Turn legacy Exchange Online tokens on or off in the Microsoft documentation.
For more information on legacy tokens, see Can I turn Exchange Online legacy tokens back on? in the Microsoft documentation.
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