Major incident

CustomerIO: UI inaccessible

Affected: Management Interface

Current status of CustomerIO: Operational — live CustomerIO status

Timeline

1. Jun 2, 2026, 21:18 UTC
   investigating
   Our team is aware of an issue affecting access to the Customer.io UI and we are working to identify the cause.
2. Jun 2, 2026, 21:33 UTC
   monitoring
   A fix has been deployed for the issue affecting access to the UI. We are monitoring performance and customer feedback.
3. Jun 2, 2026, 22:25 UTC
   identified
   Our team has identified additional UI-related issues affecting some customers. We are working on a fix now.
4. Jun 2, 2026, 22:43 UTC
   monitoring
   We have rolled out a fix for the remaining UI-related issues and are watching system behavior closely.
5. Jun 2, 2026, 22:57 UTC
   resolved
   The issues affecting the UI have been resolved, and the system is functioning normally.

Updates as published by CustomerIO (original).