Webhooks and event streams partial data loss
Final update
From 2026-08-04 15:25 UTC until 2026-08-06 03:51 UTC, Asana failed to send some events to registered webhooks and to return them in the event streams API. Apps which rely on this should refetch the underlying data from the Asana API. Existing webhooks and event streams will continue to function, but events from the incident window will not be sent. Most events with type `task` and action `changed` were dropped during this period. Other events are not affected. The root cause of the incident was traced to a code change which unintentionally dropped change events for most fields on the task type, and the change was reverted.
Timeline
- Resolved · Aug 4, 15:30 UTC
From 2026-08-04 15:25 UTC until 2026-08-06 03:51 UTC, Asana failed to send some events to registered webhooks and to return them in the event streams API. Apps which rely on this should refetch the underlying data from the Asana API. Existing webhooks and event streams will continue to function, but events from the incident window will not be sent. Most events with type `task` and action `changed` were dropped during this period. Other events are not affected. The root cause of the incident was traced to a code change which unintentionally dropped change events for most fields on the task type, and the change was reverted.
More from Asana
Full history| Started | Incident | Impact | Duration |
|---|---|---|---|
| Sep 2114:59 UTC | Automations not running for EU users | minor | 1h 10m |
| Sep 1714:36 UTC | Slow performance for a subset of Asana users | minor | 36m |
| Sep 218:08 UTC | We are fully down for a subset of customers. We're investigating the issue, and are rolling back a deployment. | major | 42m |
| Aug 3115:14 UTC | Asana full outage for some users (2 hours, 25% outage) | major | 2h 4m |
| Jul 718:49 UTC | Errors loading the Asana web app for some users in US | major | 35m |
| Apr 2923:19 UTC | Date Time Trigger Automation Failues | none | 0m |
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