Fivetran incident
3rd Party: Multiple Salesforce and Salesforce Sandbox connections are failing with HTTP 503 Service Unavailable
Fivetran experienced a minor incident on May 22, 2026 affecting Salesforce, lasting 2h 28m. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- identified May 22, 2026, 01:20 AM UTC
The issue has been identified and we are working to resolve it.
- identified May 22, 2026, 01:35 AM UTC
We have identified an issue where Salesforce connections are failing with an HTTP 503 Service Unavailable Exception. This is a third-party issue on the Salesforce side, and we are continuing to monitor the connections. Salesforce Status Page: https://status.salesforce.com/incidents/20004038
- monitoring May 22, 2026, 04:17 AM UTC
The issue from source side is resolved and we noticed that syncs are succeeding now. We are continuing to monitor the syncs.
- resolved May 22, 2026, 05:04 AM UTC
This incident has been resolved. We have observed that instance rates are returning to normal levels and affected connectors are syncing successfully. Incident Summary Description: We identified an issue for Saleforce Connection which resulted in syncs failing with a HTTP 503 Service Unavailable error. Timeline: This issue began on 21 May 2026 at 20:00 UTC and was resolved on 22 May 2026 at 00:30 UTC. Cause: The failures were caused by a source-side outage in the Saleforce API, resulting in 500 Internal Server Error responses. Resolution: No action was taken from our end. The issue was resolved on the source side, and syncs recovered automatically.