Fivetran: SAP ERP on HANA Connector sync is failing due to JSON Deserialization Error.
Incident
Report for Fivetran
Resolved
Description:
We identified an issue where SAP ERP on HANA Connector sync is failing due to a JSON Deserialization Error.
Timeline:
This issue began on November 17th 2025, at 5:21 UTC and was resolved on November 17th 2025, at 11:46 UTC.
Cause:
A recent update to the serialization method caused the failures.
Resolution:
The recent changes have been reverted, and the connector syncs are now successful.
We identified an issue where SAP ERP on HANA Connector sync is failing due to a JSON Deserialization Error.
Timeline:
This issue began on November 17th 2025, at 5:21 UTC and was resolved on November 17th 2025, at 11:46 UTC.
Cause:
A recent update to the serialization method caused the failures.
Resolution:
The recent changes have been reverted, and the connector syncs are now successful.
Update
The hotfix has been deployed, and connectors are recovering. We will keep monitoring all impacted connectors.
Monitoring
We have deployed a hotfix for this issue.
Once the hotfix has gone live, we will continue to monitor all affected connectors until they resume their normal sync functionality.
Once the hotfix has gone live, we will continue to monitor all affected connectors until they resume their normal sync functionality.
Update
The issue has been identified and we are working to resolve it.
Identified
SAP ERP on HANA Connector sync is failing with the following error: "com.fasterxml.jackson.databind.exc.MismatchedInputException: Cannot deserialize value of type `java.util.LinkedHashMap` from Array value (token `JsonToken.START_ARRAY`)"
This incident affected: Database connectors (SAP ERP on HANA).