Channel.io incident
Temporary issue detected with SMS Sending Service
Channel.io experienced a major incident on May 26, 2026 affecting 💬 Live Chat and 📞 Meet and 1 more component, lasting 5h 48m. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- investigating May 26, 2026, 12:49 AM UTC
Temporary issue has been detected with SMS Sending Service. We are currently investigating the cause and will provide updates shortly. We apologize for any inconvenience this may cause.
- monitoring May 26, 2026, 02:41 AM UTC
A fix has been implemented and we are monitoring the results.
- investigating May 26, 2026, 06:36 AM UTC
Temporary issue has been detected with SMS Sending Service. We are currently investigating the cause and will provide updates shortly. We apologize for any inconvenience this may cause.
- resolved May 26, 2026, 06:37 AM UTC
The temporary issue has been resolved, and the service is now fully operational. We apologize for any inconvenience this may have caused. - Incident Time: May 24, 2026 04:00 ~ May 26, 2026 10:50 (KST) (approximately 2 days 6 hours 50 minutes) - Affected Scope: Domestic SMS sending via the marketing and follow-up notification features - Cause: During an internal system maintenance, SMS processing was not resumed, resulting in a failure to deliver text messages. - Resolution: SMS processing has been resumed and the service has been restored. Two-stage monitoring has been added to prevent recurrence.