Outage report · Major outage

Smartsheet outage on Aug 27, 2026

Unexpected HTTP response code affecting login, sheet access, Control Center, Dynamic View and other premium apps

SeverityMajor outage

StartedAug 27, 2026, 13:33UTC

ResolvedAug 27, 2026, 15:53UTC

Duration2h 20m

What happened

Smartsheet reported a major outage starting Aug 27, 2026, 13:33 UTC, affecting Calendar, Smartsheet Login, Control Center, Sheets, Dynamic View, Reports, Dashboards, WorkApps. It was marked resolved at Aug 27, 2026, 15:53 UTC.

The incident lasted 2h 20m from first report to resolution.
Smartsheet had reported 5 other partial or major outages in the 90 days before it.
9 other vendors we track reported a significant incident within 12 hours of it.

Latest update from Smartsheet

Between August 26 and August 28, 2026, customers experienced intermittent issues logging in to Smartsheet and loading sheets, Dashboards, Reports, and certain premium applications, including Control Center, Dynamic View, WorkApps, and Resource Management. The most significant disruption occurred on August 26, lasting approximately 3 hours and 56 minutes, from 12:21 to 16:17 UTC. A shorter recurrence affected customers for approximately 47 minutes on August 27, from 13:03 to 13:50 UTC. A smaller number of customers in our European region experienced a brief period of similar impact on August 28, lasting under 30 minutes, before the issue was fully and permanently resolved. Customers in our Australia and Government regions were not affected at any point during this incident. The underlying cause traced back to a routine change to an internal feature setting. That change had an unintended side effect: it exposed a software defect that caused customers' browsers to send a large, unexpecte

Read Smartsheet's official incident report ↗