Thursday March 2, 2023


Some users may experience issues accessing

Issue summary:
On March 2nd, 2023 from 4:00 AM PST to 7:00 AM PST, some users were receiving errors related to an invalid date on their SSL certificate when calling Slack's APIs.

We discovered that an update we released on our SSL certificate was causing the issues. We've rolled back the update and the issue was resolved.

1:46 PM PST

We’ve resolved the issue where expired SSL cert prevented users from accessing You may need to reload Slack (Command/Ctrl + Shift + R) in order for this fix to be reflected on your end. We’re very sorry for any inconvenience caused.

7:55 AM PST

Some users may experience issues accessing due to an expired SSL cert. Our team is currently investigating this. We appreciate your patience as we work towards a resolution.

7:10 AM PST