Thursday December 16, 2021

Issue summary:
On December 16, 2021 from 5:14 p.m. to 5:50 p.m. PST, some customers were unable to log in to Slack and load channels or messages.

We made a change to the web application which caused an unanticipated surge in traffic to one of our internal resources. We corrected the issue on the backend and all affected customers were able to load Slack again.

3:58 AM PST

We believe the issues with loading Slack have now been resolved. If you continue to have any trouble, please reach out to us at feedback@slack.com.

6:04 PM PST

Customers may be experiencing issues with loading Slack. We're currently investigating, and we'll share updates as we have more information. We're sorry for the disruption.

5:27 PM PST

Issue summary:
On December 16, 2021 from 3:08 p.m to 4:18 p.m. PST, customers were experiencing troubles with functionality, including general connectivity, sending messages, logging in, payment issues, sending invites, and workspace administration.

We traced the issue to a recent configuration change to these services. We deployed a fix, resolving the issue for all affected customers.

2:44 AM PST

Slack services are back up and running. If you continue to experience trouble with logging in, connecting, sending messages or administrating Slack please reach out to feedback@slack.com. Thank you for your patience as we resolved these issues.

4:56 PM PST

Users may be experiencing troubles with general connectivity, sending messages, logging in, and administration.

We are continuing to investigate, and we greatly appreciate your patience. We will share more information in 30 minutes.

4:21 PM PST

We are experiencing issues with connectivity and other services. We're currently investigating the issue and will provide a status update once we have more information.

3:42 PM PST