Thursday June 5, 2025

On Thursday, June 5, 2025 starting around 8:55 AM PDT until around 10:39 AM PDT, a small number of users may have experienced trouble with a variety of functions such as: loading and connecting to Slack or sending and receiving messages.

A high demand on backend resources was observed, originating from a login mechanism. We implemented additional measures to re-stabilize the affected services, resolving the issue for all users.

3:39 PM PST

We've resolved the issues some users were experiencing when connecting to or loading Slack, and sending or receiving messages. We apologize for any disruptions to your workday and appreciate your patience as we sorted this out.

10:45 AM PST

We're continuing to monitor this issue, but are observing improved health metrics.

• Current status and actions being taken: We're still working toward resolving the issue and to reduce the likelihood of symptoms reocurring. We'll continue to monitor internal metrics as we work through this.

As user impact is currently mitigated, we'll provide another once the issue is fully resolved.

10:31 AM PST

We're seeing signs of improvement but, continue to monitor the situation.

• Current status and actions being taken: We have identified the root cause and are observing signs of improvement in our health metrics. Affected users may no longer experience trouble.
• Estimated time to resolution: No ETA at this time.
• Scope: Users globally may have encountered errors to some degree.
• Current impact to end users: Some users may have previously encountered issues loading or connecting to Slack as well as issues sending or receiving messages.
• 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.

10:01 AM PST

We're investigating a new incident.

• Current impact to end users: Some users may be experiencing trouble connecting to or loading Slack, as well as sending or receiving messages.

We'll provide an update within 30 minutes including further details on scope and actions being taken to resolve the issue.

9:30 AM PST