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title: Trigger blocks overview
approved: 2025-12-08T00:00:00.000Z
slug: docs/postman-flows/reference/overview-trigger-blocks
max-toc-depth: 2
ux: v12
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*Trigger blocks* include the following:

* [**Output**](/docs/postman-flows/reference/blocks/output-module/)
* [**Request**](/docs/postman-flows/reference/blocks/request/)
* [**Response**](/docs/postman-flows/reference/blocks/response/)
* [**Schedule**](/docs/postman-flows/reference/blocks/schedule/)
* [**Start**](/docs/postman-flows/reference/blocks/start/)