Resolved after 2 hours 47 minutes, affecting REST API and Calendar and 1 more, on July 30, 2026.
On July 30, 2026, between approximately 11:00 and 15:57 UTC, some customers could not load sheets and experienced API timeouts. This also affected Control Center, Table View, Timeline and Board views, Reports, Dashboards, Forms, Dynamic View, and Bridge integrations. The cause was a backend service that came under heavy CPU load during the morning traffic ramp-up. Its automated health checks began removing overloaded instances faster than replacements could come online, and the service's minimum capacity setting was too low to absorb the loss. Our engineers resolved the issue by raising the service's capacity limits, which restored healthy capacity and returned performance to normal within minutes. No data was lost. We have permanently raised the capacity floor, and we are tuning the health checks, adding earlier infrastructure-level monitoring, and building a runbook to prevent and speed recovery from similar issues.
Affected components
Update timeline
- investigating Jul 30, 2026, 02:54 PM UTC
We are investigating slowness and timeout errors in Smartsheet, impacting sheets, premium apps, connectors, and API. Our team is fully engaged in addressing the situation. We will provide frequent updates until we reach a monitoring status.
- identified Jul 30, 2026, 03:26 PM UTC
We have identified the issue responsible for the Smartsheet slowness and timeout issue and are implementing a fix. We will provide frequent updates until we reach a monitoring status.
- monitoring Jul 30, 2026, 03:40 PM UTC
We are observing stability being restored for Smartsheet, Premium Apps, Connectors, and API. We are continuing to monitor it closely to confirm full service stability. We will provide an update once resolution is confirmed.
- monitoring Jul 30, 2026, 03:42 PM UTC
We are continuing to monitor for any further issues.
- resolved Jul 30, 2026, 05:41 PM UTC
This incident has been resolved.
- postmortem Aug 20, 2026, 05:23 PM UTC
On July 30, 2026, between approximately 11:00 and 15:57 UTC, some customers could not load sheets and experienced API timeouts. This also affected Control Center, Table View, Timeline and Board views, Reports, Dashboards, Forms, Dynamic View, and Bridge integrations. The cause was a backend service that came under heavy CPU load during the morning traffic ramp-up. Its automated health checks began removing overloaded instances faster than replacements could come online, and the service's minimum capacity setting was too low to absorb the loss. Our engineers resolved the issue by raising the service's capacity limits, which restored healthy capacity and returned performance to normal within minutes. No data was lost. We have permanently raised the capacity floor, and we are tuning the health checks, adding earlier infrastructure-level monitoring, and building a runbook to prevent and speed recovery from similar issues.
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