> ## Documentation Index
> Fetch the complete documentation index at: https://docs.heyy.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Manual trigger

> Automation trigger: Manual trigger.

## Manual trigger

<Frame>
  <img src="https://mintcdn.com/heyy-c8bd5c9e/b6zeIXEi9G2v5U2X/assets/automations-triggers-manual-trigger.png?fit=max&auto=format&n=b6zeIXEi9G2v5U2X&q=85&s=9f08de72ee5db539330d25db152b8fae" alt="Manual trigger" width="1462" height="820" data-path="assets/automations-triggers-manual-trigger.png" />
</Frame>

Runs only when started by you or by another automation—from the Inbox, a campaign, an API call, or a [Start other automation](/help/automations/logic-actions#start-other-automation) action. Use this for flows that should not start from customer activity, such as scheduled follow-ups, bulk actions, or sub-flows called by other automations.

#### Fields

* **Channel** (required): Select the channel where this trigger will run.

### Use cases

* **Reusable sub-flows:** Build one automation (e.g. send survey, add to campaign) and start it from multiple places—other automations, campaigns, or the Inbox—using the [Start other automation](/help/automations/logic-actions#start-other-automation) action and variable mapping.
* **API- or campaign-driven flows:** Start the automation via API or when a contact enters a campaign, so the flow runs only when you or an external system decides, not on every new message.
* **Scheduled or bulk actions:** Use manual trigger for flows that run on a schedule, from a bulk action, or when an agent clicks “Run automation” in the Inbox.