Smartsheet outage: Smartsheet and Smartsheet Login Unavailable for Smartsheet US

Affected components

• Dashboards
• Forms
• Reports
• Sheets
• Single Sign On ( Company Credentials )
• Smartsheet Login

1. postmortemSep 18, 2026, 15:14 UTC

   On September 11th, 2026, starting at 12:47 PM PDT, users in the US began experiencing errors logging in to and accessing Smartsheet. Users in the EU and AU regions were not affected. By approximately 1:38 PM PDT, full service was confirmed to be restored. Our engineering teams quickly determined that a routine internal configuration change was the cause of Smartsheet's unavailability. The change was corrected, and full service was restored by approximately 1:38 PM PDT. We are currently reviewing our configuration management and change review processes, along with our internal monitoring, to prevent similar issues in the future.

2. resolvedSep 11, 2026, 23:29 UTC

   This incident has been resolved.

3. monitoringSep 11, 2026, 21:24 UTC

   The change we implemented has resolved the login and access issues, and Smartsheet is now loading successfully for all users. Things appear stable at this time. We are continuing to monitor the situation closely and will provide an update once we've confirmed full resolution.

4. identifiedSep 11, 2026, 20:50 UTC

   We've identified the issue and implemented a change, which has resulted in Smartsheet loading and users being able to log in successfully. However, an error message is still appearing on the home screen during a hard refresh. Our team is continuing to investigate this remaining issue and will provide updates as we work toward full resolution.

5. investigatingSep 11, 2026, 20:20 UTC

   We're currently investigating reports of login and access failures affecting all users, with the app displaying the error "We're having trouble reaching Smartsheet right now." Our team is actively working on a resolution and will share frequent updates until the issue reaches monitoring status.

What APIStatus.watch saw

Our 5-minute checks didn't record a change in Smartsheet's overall status around this incident. Smaller or regional incidents often leave a provider's overall status green.

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How often does Smartsheet have incidents?

Smartsheet reported 10 incidents in the last 90 days, 8 of them major or critical. A typical incident lasted 3h 33m. See Smartsheet's uptime and incident history