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Outage in Slack

Trouble loading Slack and saving changes.

Resolved Minor
November 11, 2026 - Started about 17 hours ago - Lasted about 4 hours
Official incident page

Incident Report

Summary AI Generated

Slack experienced a 3.6-hour incident where a database storage capacity issue — triggered by a recent database change — prevented users from loading the app, logging in, creating channels, saving preferences, installing apps, and publishing workflows. Engineers resolved the issue by freeing storage, removing unhealthy database hosts, and restoring database redundancy, with error rates returning to normal around 16:15 UTC. Additional configuration changes were made following recovery to prevent recurrence.

We're investigating a new incident.

Some users may be experiencing delays when loading Slack and when using Slack features. We're working to understand the full impact to users. Our team is actively investigating the issue and is focused on restoring full performance as quickly as possible. We'll provide an update as soon as possible, and not longer than 30 minutes, with further details on the impact and actions being taken.

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Latest Updates ( sorted recent to last )
about 14 hours ago - at 11/11/2026 06:28PM

Systems remain stable, and we haven’t seen the errors return. We’re continuing to restore additional database capacity and are completing a planned change to further strengthen the service. We’ll provide an update in 60 minutes or sooner if additional information becomes available.

about 15 hours ago - at 11/11/2026 05:31PM

We’re continuing to monitor our database systems closely and haven’t seen the errors return based on our latest checks. Work to prevent this issue from happening again is still in progress. We’ll provide an update in 60 minutes or sooner if additional information becomes available.

about 15 hours ago - at 11/11/2026 05:02PM

Error rates have been at normal levels as of 16:15 UTC, and users should be able to load Slack, log in, create channels, and save changes. We’re continuing to restore full database redundancy and working on configuration changes to prevent the issue from returning. We’ll provide an update in 30 minutes or sooner if additional information becomes available.

about 15 hours ago - at 11/11/2026 04:48PM

Errors have decreased since about 15:51 UTC, and most users should now be able to load Slack, log in, create channels, and save changes. We’re continuing to stabilize our database systems and taking steps to prevent the issue from returning. We’ll provide an update in 30 minutes or sooner if additional information becomes available.

about 16 hours ago - at 11/11/2026 04:27PM

Since about 15:51 UTC, errors have decreased and many users can load Slack, log in, and save changes again. Some users may still encounter errors while we continue to stabilize our database systems. We’re also taking steps to prevent related databases from running out of storage. We’ll provide an update in 30 minutes or sooner if additional information becomes available.

about 16 hours ago - at 11/11/2026 04:16PM

We’ve identified that some users may also be unable to log in, create channels, install apps, or publish workflows. We’re investigating a recent database change as the likely trigger leading to a database storage capacity issue. We began freeing storage and removed unhealthy database hosts. Some users may continue to see errors. We’re working to prevent related databases from being affected. We’ll provide an update in 30 minutes or sooner if additional information becomes available.

about 16 hours ago - at 11/11/2026 03:55PM

We’re continuing to work on the Slack issue described in our last update. Some users may still encounter errors when loading the app, saving preferences or profile changes, and deactivating members. We’ll provide an update in 30 minutes or sooner if additional information becomes available. 

about 17 hours ago - at 11/11/2026 03:29PM

We are investigating an issue where some customers may encounter various errors across Slack, including failures when loading the app, saving preferences or profile changes, and deactivating members. Our team is actively working to resolve the issue, and we'll share our next update in 30 minutes or as soon as more information is available.

about 17 hours ago - at 11/11/2026 03:24PM

We're investigating a new incident. 

Some users may be experiencing delays when loading Slack and when using Slack features. We're working to understand the full impact to users. Our team is actively investigating the issue and is focused on restoring full performance as quickly as possible. We'll provide an update as soon as possible, and not longer than 30 minutes, with further details on the impact and actions being taken.

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