Fivetran incident
3rd Party: Some HubSpot connections intermittently failing with "Unknown failure" error
Fivetran experienced a notice incident on March 6, 2026, lasting —. The incident has been resolved; the full update timeline is below.
Update timeline
- resolved Mar 06, 2026, 04:29 PM UTC
This incident has been resolved. We observed HubSpot connector sync success rates returning to normal levels, and syncs are now running as expected. Description: We identified an issue where some HubSpot connector syncs were failing with the error: "Unknown failure." Timeline: The issue began on March 6, 2026, at 15:00 UTC and was resolved at 15:45 UTC. Cause: The issue was caused by timeouts when attempting to reach HubSpot's OAuth endpoint. Resolution: No changes were required on our side. The issue was resolved automatically once connectivity to HubSpot's OAuth endpoint was restored.