Fixed duplicate Zendesk webhooks on retries

Retried Zendesk webhooks no longer start duplicate runs; deduplication now uses the ticket event ID.

RELEASE

VERSION

v2.12.4

RELEASED

Aug 12, 2026

TYPE

Fix

Questions about this release?

Under heavy load, Zendesk can retry webhook deliveries. Cairn now deduplicates on the ticket event ID, so retries never create a second run.

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Try it today

Every update on this page is available to new workspaces today. Start free, or book a walkthrough with an engineer.

Start free

Book a demo

Free 14-day trial · No credit card · SOC 2 Type II