Customer.io outage, 1 June 2026

Reverse ETL Syncs not being run for some EU Customers

Started
Resolved
1 Jun 2026, 12:11 UTC (after 31 min)
Impact
Minor
Affected
Data Processing

Last update from Customer.io

We have confirmed that the incident has been resolved and all Reverse ETL syncs are running as expected. Thanks for your patience!

1 Jun 2026, 12:11 UTC

Read the full incident on the official Customer.io status page

Is Customer.io down now?

This page is the record of one past incident. For the live status, see Is Customer.io down right now? - it reads the official status page every 2 minutes.

Other Customer.io incidents

  1. Some US customers may experience delays in message sending

  2. Reduced Deliverability to Microsoft-Hosted Email Addresses

  3. Investigating issues with the Agent

  4. Customer.io UI is inaccessible

  5. Delays in processing and UI inaccessible for some customers in the US datacentre

  6. Issues accessing EU accounts

  7. Some EU users are experiencing delays in processing

  8. Some customers are experiencing data processing and message-sending delays

All recorded Customer.io incidents