Affinity incident
Authentication Issues with Windows Outlook Desktop App
Affinity is currently experiencing a minor incident affecting Affinity for Outlook, which began 14h ago. The vendor's full update timeline is below.
Affected components
Affinity for Outlook
Update timeline
- identified Jun 30, 2026, 04:06 PM UTC
Some users on Windows Outlook Desktop App are unable to complete SSO login to the Affinity Outlook Add-in. This is due to a recent change on Microsoft's end affecting how Outlook on Windows handles authentication redirects. Mac Outlook is unaffected. As a workaround, users can access Affinity via the web application.