Tuesday August 11, 2026

The issue affecting third-party apps, integrations, and the Slack API has been fully resolved.

The disruption was caused by an unexpected surge in rate-limiting throttles following a backend configuration deployment. We rolled back the configuration, cleared the bottlenecked request queues, and scaled up API gateway capacity. All endpoints are performing within normal parameters.

We apologize for the inconvenience and appreciate your patience. 

3:25 AM PST

 We've identified the trigger for the issues affecting third-party apps, integrations, and the Slack API. A path to resolution is underway, and we are working quickly to apply the fix.

We apologize for the inconvenience and will update you again in 30 minutes. 

1:22 AM PST

Some users may be experiencing trouble with third-party apps, integrations, or the Slack API. We apologize for the disruption and are working to resolve this as quickly as possible. We'll provide another update within 30 minutes.

1:18 AM PST

The intermittent messaging issues affecting Slack have been resolved, and system stability is confirmed. We apologize for the inconvenience, and we appreciate your patience while our teams worked to resolve this. 

7:30 AM PST

We've deployed the fix, and users should now begin to see messaging functionality return to normal. Our engineering teams are closely monitoring system metrics to ensure full stability and a successful resolution across all services. 

We understand the impact this intermittent issue had on your communication, and we appreciate your patience as we worked to resolve it.  A final update will follow shortly once a complete resolution is confirmed. 

7:28 AM PST

We've identified the trigger of the intermittent messaging issues. The disruption was caused by an unexpected traffic surge on a component of our backend messaging infrastructure. To restore full performance, our team is executing a plan to route and rate-limit this specific traffic segment, safeguarding messaging services for our customers. 

Our team is actively deploying the fix. We'll share another update in 30 minutes, or as soon as significant information becomes available. 

7:18 AM PST

We're continuing to investigate intermittent messaging issues, including delays and failures with DMs and threads. Additional resources have been engaged, and resolving this remains our highest priority. 

We know how disruptive this is to your workday, and we're working as quickly as possible to get everything back to normal. 

We'll share another update in 60 minutes or as events warrant. 

7:02 AM PST

We're investigating intermittent issues affecting message delivery, including DMs and threads. Some messages may fail or experience delays. 

We apologize for the inconvenience and will provide another update in 30 minutes. 

6:42 AM PST