# Triggering a Campaign as User Enters/Exits a Cohort using Webhook

A feature extension of Cohort Sync Webhook now supports triggering campaigns in tools like Braze whenever a user enters or exits a cohort, enabling up to 50 user properties alongside the user ID to personalize campaigns and enrich downstream data.

Source: https://amplitude.com/en-us/releases/cohort-user-enter-exit-webhook

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ActivationApr 15, 2025

[\[All updates\]](/releases)

### Triggering a Campaign as User Enters/Exits a Cohort using Webhook

Raymond Chen

**Description:** Cohort Sync Webhook supports triggering campaigns in tools like Braze whenever a user enters or exits a cohort. The integration now supports up to 50 user properties alongside the user ID to personalize campaigns and enrich downstream data. Users can select which user properties to include through a new self-serve UI and reference them directly in their templates. Previously, the webhook only forwarded user IDs, limiting flexibility for destinations like Braze. With this improvement, users can build high-intent, time-sensitive campaigns, such as cart abandonment, more efficiently.

**Why:** With this webhook, Amplitude sends cohort entry and exit events directly to Braze when a user enters or exits a cohort. This provides event triggered updates easier to use and more efficient.

**When:** Available to all customers.

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