Thursday January 8, 2026

Summary

Starting around 11:50 AM PST until around 3:15 PM PST on January 8, 2026, some users experienced a variety of performance issues in Slack, such as significant delays or a total inability to send and receive messages, load channels, or view threads.

We traced this to a routine backend configuration job which unexpectedly caused some services to reload or become unresponsive. To mitigate the impact, we promptly paused the problematic job and restarted the affected services, resolving the issue for all users.

8:10 AM PST

Resolved

This issue is now resolved for all users.

• Current status and recent actions taken: We have successfully remediated all affected regions by restarting the impacted services to restore functionality to the affected features. Users should no longer experience issues sending messages, loading Slack, or experiencing general functionality issues.
• Scope: This issue did not affect any specific region, but a percentage of users may have been impacted globally.
• Previous impact to end users: Some users may have experienced failed message sends, loading errors, or other intermittent failures.
• Required resolution steps: No steps required.

We apologize for any disruptions to your day.

3:40 PM PST

Update

We are actively working to resolve the current platform functionality issues

• Current status and actions being taken: Our engineering teams have identified a configuration change as the potential cause affecting our edge infrastructure. We have started remediating impact across some regions and are continuing these efforts across the remaining regions.
• Estimated time to resolution: No ETA at this time.
• Scope: This issue does not affect any specific region, but a percentage of users may be impacted globally.
• Current impact to end users: Some users may experience failed message sends, loading errors, or other intermittent failures.
• Known workarounds: No known workarounds at this time.

We'll continue to provide updates every 30 minutes until the impact is resolved for all users.

3:13 PM PST

Investigating

We are currently investigating an issue where a subset of users may experience difficulties accessing Slack features. Some users may experience failed message sends, loading errors, or other intermittent failures across the platform. We apologise for the inconvenience and will provide another update as soon as we have more details to share.

2:34 PM PST