Outage in Fivetran

3rd Party: Iterable Connector syncs are failing with error: Cannot deserialize value of type `java.lang.String` from Object value

Resolved Minor
December 17, 2025 - Started 2 days ago - Lasted about 6 hours
Official incident page

Incident Report

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

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Latest Updates ( sorted recent to last )
RESOLVED 2 days ago - at 12/18/2025 05:35AM

We have resolved this incident.

MONITORING 2 days ago - at 12/18/2025 01:57AM

A hotfix has been deployed and we are monitoring the syncs now.

IDENTIFIED 2 days ago - at 12/18/2025 12:21AM

We have identified that the issue stems from a change on the source side where a webhook record contains a value that is expected to be of String type is being returned as JSON, which is causing sync failures for the Iterable connectors. Our engineering team is actively working on a fix.

IDENTIFIED 2 days ago - at 12/17/2025 11:25PM

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

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