Slack Outage History

Uptime record, past incidents, and downtime history for Slack.

Checking current status...
100% uptime over 70 days
99.9% ✓ 99.5% ✓ 99% ✓ 95% ✓

90-Day Trend

Jan 31Apr 10

Monthly Uptime

Month Uptime Days Tracked Days with Issues
April 2026 100% 10 0
March 2026 100% 31 0
February 2026 100% 28 0
January 2026 100% 1 0

Uptime is calculated from daily worst-status snapshots. A day with any non-operational status counts as a day with issues.

Daily Status (Last 70 Days)

Jan 31 Today
Operational Degraded Partial Outage Major Outage Maintenance No Data

Incident History

April 2026
Incident: Trouble with Slackbot and AI-powered features
major

Started: Apr 9, 7:29 PM

investigating
Current status and recent actions taken:  After monitoring system performance and infrastructure stability, we have confirmed that all Slack features are operating within expected levels. This incident is now resolved and users should no longer experience any issues with Slackbot, AI Features, or workflows.We apologize for any disruptions to your day.
Apr 9, 7:29 PM
Incident: Slackbot button in the top navigation is disappearing
major

Started: Apr 1, 2:41 PM

investigating
This issue is now resolved for all users.Current status and recent actions taken:  We've completed deploying the fix to address the issue affecting the Slackbot button in the top navigation bar. The Slackbot button is now working as expected. Scope: The issue was introduced for any users on build 121247.Previous impact to end users: The Slackbot button in the top navigation bar may not have been visible to users.Required resolution steps: Users who are stil...
Apr 1, 2:41 PM
March 2026
Incident: Issue with Sending and Receiving Messages
major

Started: Mar 30, 1:17 AM

investigating
Following a period of monitoring, our engineering team called this incident resolved as of 01:10 UTC, March 30. We apologize for any inconvenience this issue has caused to users. 
Mar 30, 1:17 AM
Incident: Issues while sending messages and loading message history is impacting some users
major

Started: Mar 28, 5:39 AM

investigating
This issue is now resolved for all users.Current status and recent actions taken: We identified a paused job that may have been contributing to the high utilization. This was unpaused, which restored resource availability.Scope: This only affected a small subset of users.Previous impact to end users: Some users may have experienced issues while sending messages and loading message history in Slack between 20:14 PDT and 22:14 PDT.We apologize for any disruptions to yo...
Mar 28, 5:39 AM
Incident: Trouble connecting to Slack
major

Started: Mar 26, 4:36 PM

investigating
Intermittent errors when sending messages have been resolved. Additionally, some customers may see inaccurate notification badge counts which can be resolved with a hard reload to clear temporary local cache. Apologies for the trouble today and thank you for your patience.
Mar 26, 4:36 PM
Incident: Authorization Failure Errors Connecting to the Slack MCP Sever
major

Started: Mar 23, 3:46 AM

investigating
We have resolved the issue that was causing users to experience authorization failures when connecting certain third-party integrations to Slack.We apologize for any inconvenience this may have caused and thank you for your patience.
Mar 23, 3:46 AM
Incident: Intermittent SSO login errors accessing Slack workspace.
major

Started: Mar 9, 7:17 PM

investigating
This issue is now resolved for all users.Current status and recent actions taken:  We identified the cause as a login routing component that had incorrect entries, which prevented users from being directed to their workspace correctly. A fix has been deployed to address this issue. Previous impact to end users:  Users attempting to log in via SSO may have encountered errors requiring them to refresh their browser multiple times before successfully accessing...
Mar 9, 7:17 PM
Incident: Issues with App Mentions, Grid Migrations, and Notifications
major

Started: Mar 6, 4:44 PM

investigating
This issue is now resolved for all users.Current status and recent actions taken: The issue is now resolved, and users should no longer be experiencing any trouble with when using app mentions, migrations, and push notifications. Enterprise Migrations should also be completing as expected.Scope: This issue wasn't affecting any specific region, but a percentage of users may have been affected globally.Previous impact to end users: Developers may have experienced issues in ...
Mar 6, 4:44 PM