November 15, 2025
- 09:22 CET – Internal diagnostic messages began failing to process, creating a backlog in the system.
- 21:22 CET – The backlog reached full capacity.
- 21:23 CET – OCPI services were impacted, preventing actions such as authorizing charging sessions and publishing charging data.
- 23:19 CET – Internal escalation initiated; troubleshooting began.
November 16, 2025
- 03:35 CET – Temporary mitigation applied: backlog cleared and problematic process disabled, restoring service functionality.
November 18, 2025
- 07:22 CET – A new EV Portal version was deployed, causing recurrence of the issue.
- 08:50 CET – Corrective action taken, restoring normal operations.
Confirmed Root Cause
The incident was caused by the way diagnostic messages were handled between EV Portal and connected services:
- System couldn't handle the volume of OCPI messages, leading to a backlog.
- The backlog blocked operations such as token authorization and charging data publication
Mitigation and Resolution
- Immediate corrective actions included clearing the backlog and disabling the process responsible for the issue.
- Development team is working on a permanent solution for the matter
Lessons Learned and Next Steps
- Retire the outdated process and associated components to eliminate risk of similar incidents.
- Strengthen deployment validation to ensure changes do not unintentionally reintroduce deprecated functionality.
Commitment to Customers
We recognize the inconvenience this incident caused and are committed to ensuring the reliability of the EV Portal. Our teams are implementing the above improvements immediately to prevent similar issues in the future.