Kustomer outage, 10 December 2025
[OUTBOUND WEBHOOKS] Outbound Webhooks API errors in Prod2 and Prod4
- Started
- Resolved
- 10 Dec 2025, 04:52 UTC (after 1 h 14 min)
- Impact
- Not stated
- Affected
- Web/Email/Form Hooks
Last update from Kustomer
### **Summary** On December 9, 2025, Kustomer experienced an interruption to outbound webhook delivery affecting customers in our **prod-2 \(EU\)** and **prod-4 \(IN\)** production regions. During this time, some outbound webhook requests were unable to reach customer endpoints, resulting in delivery failures and error responses. The disruption occurred during a routine platform update related to our deployment systems. An underlying inconsistency from a previous infrastructure change caused a required backend service to become temporarily unavailable while updates were in progress. As a result, webhook endpoints could not accept or process delivery attempts for a limited period. Engineer...
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