---
title: "Webhooks and reactions: integration of external systems"
manual: "TYPO3 Explained"
version: "main"
permalink: "https://docs.typo3.org/permalink/t3coreapi:webhooks@main"
source: "ApiOverview/Webhooks/Index.rst"
rendered: "2026-09-23T16:24:37+00:00"
---

# Webhooks and reactions: integration of external systems {#webhooks}

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The backend module for the reactions was moved to
Administration > Integrations > Reactions and the module for the webhooks
to Administration > Integrations > Webhooks

A webhook is an automated message sent from one application to another via HTTP.
It is defined as an authorized POST or GET request to a defined URL. For
example, a webhook can be used to send a notification to a Slack channel when a
new page is created in TYPO3.

TYPO3 supports incoming and outgoing webhooks:

-   The system extension [Reactions](https://docs.typo3.org/c/typo3/cms-reactions/main/en-us/Index.html) provides the
    functionality to receive webhooks in TYPO3 from third-party system.
-   The system extension [Webhooks](https://docs.typo3.org/c/typo3/cms-webhooks/main/en-us/Index.html) provides the
    possibility to send webhooks from TYPO3 to third-party systems.

**System -> Configuration** lists available reaction and webhook types
which administrators can facilitate in the corresponding backend modules.

Have a look at the linked documentation for more details.