Saturday November 8, 2025

Summary

Beginning around 11:00 AM PST and lasting until 2:24 PM PST on November 8, 2025, some enterprise users experienced a blank page when attempting to sign into Slack. Non-enterprise users would have successfully been able to sign into Slack.

We traced this issue to a configuration error tied to the workspace directory page (the page users are typically directed to after logging in), which caused incorrect redirects. During the incident, affected users may have successfully accessed Slack by navigating directly to https://app.slack.com as a temporary workaround.

To quickly mitigate the impact, we rolled Slack back to a confirmed working version, resolving the issue for all users.

3:05 PM PST

Resolved

This issue is now resolved. Users should no longer see a blank page. We apologize for the disruption this may have caused to your day.

3:20 PM PST

Update

Mitigation efforts are underway.

• Current status and actions being taken: We identified the cause of the issue and have initiated remediation efforts, which appear to be successful. We continue to monitor our progress.

We apologize for the inconvenience and will continue sharing updates as they become available.

3:05 PM PST

Investigating

We're investigating an issue where some users are seeing a blank page when attempting to log in to Slack.

If you encounter a blank page, please go to slack.com in your browser and select your workspace. The login page for all your workspaces should then appear.

We apologize for the inconvenience and will continue sharing updates as they become available.

2:26 PM PST