Major incident

CustomerIO: Investigating Connectivity Issues

Current status of CustomerIO: Operational — live CustomerIO status

Timeline

1. Jun 13, 2026, 21:18 UTC
   investigating
   We are aware of an issue affecting access to our web application. Customers may encounter ERR_CONNECTION_REFUSED when attempting to access the UI. At this time, we are not aware of any impact beyond UI accessibility. Message processing and delivery continue to operate normally. Our team is actively investigating the issue and working to restore full service as quickly as possible. We will provide updates as more information becomes available.
2. Jun 13, 2026, 22:21 UTC
   identified
   The team has identified the issue and is actively working on a fix
3. Jun 13, 2026, 23:46 UTC
   monitoring
   A fix has been implemented and the systems are recovering. We are monitoring UI for any other issue.
4. Jun 14, 2026, 00:00 UTC
   resolved
   This incident has been resolved.

Updates as published by CustomerIO (original).