Changes / Smartsheet / Smartsheet Slowness and Timeout Errors
Smartsheet: Major incident: Smartsheet Slowness and Timeout Errors
Summary
Smartsheet reported major slowness and timeouts affecting sheets, premium apps, connectors, and API from 2026-07-30 14:54 UTC to 2026-07-30 17:41 UTC (2 h 47 min). Its postmortem separately described customer impact between approximately 11:00 and 15:57 UTC, attributing failures to a backend service under heavy CPU load during morning traffic ramp-up.
Machine-written from the diff below (Sol; type: incident degradation). Check the diff before relying on it.
Major incidentLabel: degradation (model (Jev), 52%)Changed Detected Source: stspg.io (opens in new tab)
What changed
Before: not present
After: Smartsheet Slowness and Timeout Errors
Before: not present
After: major
Before: not present
After: postmortem
Before: not present
After: 2026-07-30 14:54 UTC
Before: not present
After: 2026-07-30 17:41 UTC
Before: not present
After: Advance Capabilities - Calendar, Advance Capabilities - Control Center, Advance Capabilities - Datamesh, Advance Capabilities - DataTable, Advance Capabilities - Dynamic View, Advance Capabilities - Pivot, Advance Capabilities - WorkApps, Calendar, Connectors - Data Shuttle, Connectors - Dynamics Connector, Connectors - Jira Connector, Connectors - Salesforce Connector, Connectors - ServiceNow Connector, Connectors - Tableau Connector, Control Center, Core Application - Sheets, Datamesh, Data Shuttle, DataTable, Developers and API - REST API, Dynamics Connector, Dynamic View, Jira Connector, Pivot, REST API, Salesforce Connector, ServiceNow Connector, Sheets, Tableau Connector, Third Party Integrations, WorkApps
Before: not present
After: 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.
Before: not present
After: 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.
Before: not present
After: 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.
Before: not present
After: We are continuing to monitor for any further issues.
Before: not present
After: This incident has been resolved.
Before: not present
After: 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.
First version of this incident archived by Rewindex. View the live incident (opens in new tab).
History of this incident
| When (UTC) | Change | Kind |
|---|---|---|
| Major incident: Smartsheet Slowness and Timeout Errors (this change) Smartsheet reported major slowness and timeouts affecting sheets, premium apps, connectors, and API from 2026-07-30 14:54 UTC to 2026-07-30 17:41 UTC (2 h 47 min). Its postmortem separately described customer impact between approximately 11:00 and 15:57 UTC, attributing failures to a backend service under heavy CPU load during morning traffic ramp-up. | Major incident |
All Smartsheet changes → · Smartsheet profile · Markdown · JSON