Critical incident

Wunderkind: Text not sending

Affected: Welcome Text, On-Demand Text, Behavioral Text

Current status of Wunderkind: Operational — live Wunderkind status

Timeline

1. Jun 17, 2026, 20:29 UTC
   identified
   We identified an issue that is preventing text campaigns from sending. Beginning at approximately 12:44 PM ET today, text sends — including on-demand (OD) campaigns, behavioral texts, and test sends — were not being delivered. Our engineering team has identified the root cause, and a fix is currently being deployed.
2. Jun 17, 2026, 21:05 UTC
   identified
   Our Engineering Team is continuing to work on the fix.
3. Jun 17, 2026, 21:37 UTC
   identified
   Our Engineering Team continues to work on a fix. We are making progress and will share another update once more information is available.
4. Jun 17, 2026, 22:27 UTC
   monitoring
   A fix has been deployed, and we are monitoring the result.
5. Jun 17, 2026, 23:07 UTC
   monitoring
   A fix for this issue was deployed at 6:13 PM ET. Behavioral Texts: Our team is working on replaying any missed sends. On-Demand Texts: These cannot be replayed automatically. If you had an On-Demand Campaign scheduled during the affected window (approximately 12:44 PM – 6:13 PM ET), your CSM will be reaching out to help you reschedule.
6. Jun 18, 2026, 01:13 UTC
   resolved
   The issue preventing text campaigns from sending is now resolved. The issue stemmed from a configuration error introduced during an internal infrastructure migration, which prevented text messages from being delivered. The disruption occurred between approximately 12:44 PM – 6:13 PM ET. Behavioral Texts: While we previously indicated that our team was working on replaying missed sends, we have determined that these cannot be replayed. On-Demand Campaigns: These cannot be replayed automatically. If you had an On-Demand Campaign scheduled during this period, your CSM will be reaching out to help you reschedule. Our team will be conducting a review to prevent recurrence. We apologize for the disruption and appreciate your patience

Updates as published by Wunderkind (original).