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.

Started
Jun 30, 2026, 04:06 PM UTC
Resolved
Ongoing
Duration
● 14h 23m
Detected by Pingoru
Jun 30, 2026, 04:06 PM UTC

Affected components

Affinity for Outlook

Update timeline

  1. 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.