Resolved after 2 hours 21 minutes, on March 13, 2026.
Slack have confirmed that the issue has been fully resolved, and affected customers have verified that they can log in successfully.
Update timeline
- investigating Mar 13, 2026, 02:19 PM UTC
We are currently investigating reports that users are unable to login using Slack.
- identified Mar 13, 2026, 02:53 PM UTC
Users in some Slack workspaces are unable to sign in with Slack. We have escalated this issue to Slack. Signing in with SAML and Microsoft Teams is not affected.
- monitoring Mar 13, 2026, 03:54 PM UTC
Slack have rolled back a change which caused this issue, and we have confirmed recovery. Please reach out to support if you're still experiencing any issues signing in with Slack.
- resolved Mar 13, 2026, 04:40 PM UTC
Slack have confirmed that the issue has been fully resolved, and affected customers have verified that they can log in successfully.
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