System Registrations for myVAILLANT/MiGo Link Connected Systems Failing

Incident Report for Vaillant Group Partner API

Resolved

This incident has been resolved.

Posted Aug 20, 2026 - 16:40 CEST

Monitoring

A fix has been released to production, including the recovery of all registrations that were pending due to an unknown owner.

We will continue to closely monitor the service to ensure everything operates as expected.

Thank you for your patience, and we apologize for any inconvenience this issue may have caused.

Posted Aug 18, 2026 - 09:32 CEST

Identified

System registrations for myVAILLANT/MiGo Link connected systems are currently failing due to the status OWNER_UNKNOWN.
As a result the consent process is not successfully initiated.

We have identified the root cause and are working on a high-priority fix.

Posted Aug 13, 2026 - 14:51 CEST

This incident affected: APIs (system registration API v1).