Outage in Fivetran

3rd Party: AccuLynx connections are failing with 500 Internal Server Error

Resolved Minor
December 16, 2025 - Started 4 days ago - Lasted about 4 hours
Official incident page

Incident Report

The issue has been identified and we are working to resolve it.
Components affected
Fivetran AccuLynx

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Latest Updates ( sorted recent to last )
RESOLVED 4 days ago - at 12/16/2025 06:38AM

Description:

3rd Party: AccuLynx connections are failing with 500 Internal Server Error

Timeline:

The issue started on December 15, 8:10 PM UTC and was resolved on December 16, 5:00 AM UTC

Cause:

AccuLynx was returning a 500 Internal Server Error on the Estimate Table with the /api/v2/estimates endpoint, causing all AccuLynx Syncs to fail.

Resolution:

The issue has been resolved by the source, and all syncs are now running successfully.

MONITORING 4 days ago - at 12/16/2025 06:06AM

The issue has been resolved by the source, and all syncs are now running successfully. Since the issue has been fixed at the source, the previously prepared PR to skip the error has not been deployed.
We will continue to monitor the connections.

IDENTIFIED 4 days ago - at 12/16/2025 04:20AM

We have implemented a fix, which is currently being deployed, that applies a skip with alerts for the /api/v2/estimates endpoint to prevent sync failures. Furthermore, we have contacted Acculynx for further investigation.

IDENTIFIED 4 days ago - at 12/16/2025 02:37AM

AccuLynx is returning a 500 Internal Server Error on the Estimate Table with the /api/v2/estimates endpoint, causing all AccuLynx Syncs to fail. We are actively working to resolve the issue.

IDENTIFIED 4 days ago - at 12/16/2025 02:35AM

The issue has been identified and we are working to resolve it.

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