Customer.io incident

Some customers are seeing broadcast delivery delays (emails, push notifications, and webhooks)

Minor Resolved View vendor source →

Customer.io experienced a minor incident on May 29, 2026 affecting Message Sending, lasting 41m. The incident has been resolved; the full update timeline is below.

Started
May 29, 2026, 04:26 PM UTC
Resolved
May 29, 2026, 05:08 PM UTC
Duration
41m
Detected by Pingoru
May 29, 2026, 04:26 PM UTC

Affected components

Message Sending

Update timeline

  1. investigating May 29, 2026, 04:26 PM UTC

    Our engineers are aware of an issue where messages may be showing as "queued". We're investigating this now. Thank you for your patience!

  2. identified May 29, 2026, 04:40 PM UTC

    We've identified the issue and are working towards a resolution now.

  3. monitoring May 29, 2026, 04:51 PM UTC

    We have a resolution in place and are monitoring message throughput recovery now. Thank you for your patience!

  4. resolved May 29, 2026, 05:08 PM UTC

    We have confirmed that this incident is now resolved. Thank you very much for your patience!