2:15 AM PST
Users should no longer be facing trouble logging in to their workspaces from their mobile, using single sign-on (SSO) or otherwise. Thank you for sticking with us while we worked through this.
2:32 AM PST
Some customers are currently unable to login to Slack on our mobile apps, particularly when using single sign-on (SSO). We're currently investigating, and we're sorry for the disruption. In the meantime, you can login with the following steps:
1. Visit https://slack.com/signin on a mobile web browser
2. Sign in to the Slack workspace
3. Tap 'Open Slack' to launch the workspace in the Slack app
10:20 PM PST