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Slack: Some users unable to sign in

MinorStatus: resolvedStarted Resolved (36 min)2 updatesslack-status.com (opens in new tab)

Affected components: Login/SSO

Timeline of updates

  1. update

    Some users in EMEA may be failing to receive 2FA codes via SMS when logging into Slack. We are investigating the trigger and working to resolve this incident as quickly as possible. We will provide another update in 30 minutes or sooner as we have more details to share.

  2. resolved

    The issue affecting SMS-based two-factor authentication for users in EMEA has been resolved, and all services are now functioning as expected. We have adjusted configuration settings to restore normal service and will continue to monitor the situation to ensure stability. We apologize for how you and your business may have been affected by this. We will perform a full investigation of the incident, confirming the technical trigger, the underlying cause, and preventive action to avoid a repeat in the future.

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Impact, status and times are the vendor’s own, as last archived. View on slack-status.com (opens in new tab).

Cite this

Status incident (vendor impact label: minor) posted by Slack, started 2026-06-08 19:00 UTC, resolved after 36 min, 2 update(s).

Title
Some users unable to sign in
Vendor
Slack
Date
URL
https://rewindex.com/company/slack/incidents/1562

Slack profileRecent Slack incidentsAll outages on June 8, 2026Slack in June 2026MarkdownJSON