Customer.io outage, 4 June 2026

Salesforce and Hubspot syncs might be delayed for some EU customers

Started
Resolved
5 Jun 2026, 01:15 UTC (after 1 h 25 min)
Impact
Minor
Affected
Data Processing

Last update from Customer.io

We confirm the incident is resolved. Thank you for your patience!

5 Jun 2026, 01:15 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