Wednesday May 17, 2023

Our engineering team deployed a minor technical change to the handling of cryptographic operations, such as API token validation. During this redirection we saw a higher than anticipated volume of failed API requests which resulted in an impact to the Slack service. As a result, Slack was down between 1:56 PM PDT - 2:03 PM PDT. This was resolved when these changes were rolled back by infrastructure teams.

May 17, 2:58 PM UTC

Issue Summary: On May 17, 2023 from 11:28 AM to 11:55 AM PDT some users encountered error messages while connecting to Slack. This issue was a result of an operational change made in error, which caused our databases to become inaccessible. We rolled back this change, fixing the problem for all impacted users.

May 17, 10:40 PM UTC

Users should no longer be experiencing any trouble loading Slack. Apologies for the trouble today and thank you for your patience.

May 17, 7:33 PM UTC

Some users are reporting an error page when trying to connect to Slack. We're working on this and will share an update within the next 30 minutes.

May 17, 7:05 PM UTC