Thursday October 2, 2025

Incident

Delay in Email Delivery

Update

At approximately 18:30 UTC today, we initiated an investigation into an issue impacting several Slack services. Customers may encounter errors when using Slack, with potential disruptions to message sending, channel loading, agent interactions, Slack client launches, integrated apps, Slack Lists, and Canvas.


Our teams are actively working to resolve this, and we will share the next update in 30 minutes, or sooner if new information emerges.

11:28 AM PST

Investigating

We are currently experiencing an incident affecting multiple services. Our team is working with urgency to identify the trigger and mitigate the issue as quickly as possible. 

An update will be provided within 30 minutes, or sooner if new information emerges.

11:27 AM PST

Features affected

Messaging

Status

Incident

Incident

Increasing Error Rates

incident done Resolved

At 19:15 UTC, services were restored following the implementation of a fix. This solution involved a configuration change that successfully resolved the database routing issue.

We will conduct a thorough investigation into the incident, identifying the technical trigger, the root cause, and the necessary preventive actions to avoid recurrence.

12:24 PM PST

Cause Identified

A database routing issue has been identified as the probable trigger of this incident. Containment measures have been implemented to limit the impact, and a permanent solution is now being deployed.

We will share the next update in 30 minutes, or sooner if new information emerges.

12:09 PM PST

Update

At approximately 18:30 UTC today, we initiated an investigation into an issue impacting several Slack services. Customers may encounter errors when using Slack, with potential disruptions to message sending, channel loading, agent interactions, Slack client launches, integrated apps, Slack Lists, and Canvas.

Our teams are actively working to resolve this, and we will share the next update in 30 minutes, or sooner if new information emerges.

12:00 PM PST

Investigating

We are currently experiencing an incident affecting multiple services. Our team is working with urgency to identify the trigger and mitigate the issue as quickly as possible. 

An update will be provided within 30 minutes, or sooner if new information emerges.

11:56 AM PST

Features affected

Login/SSO

Connectivity

Messaging

Notifications

Apps/Integrations/APIs

Canvases

Status

Incident