On August 26, 2020 between 4:03 p.m. PDT and 5:16 p.m. PDT, some customers had trouble connecting to Slack.
We launched an investigation and determined the issue was caused by an ongoing load test that impacted our core service. As the test ended, users were able to connect to Slack again by 5:16 p.m. PDT. We're working on preventive measures to ensure this doesn't happen in the future.
4:03 PM PST