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

# Campaign

> Start a workflow when a contact enters a campaign.

The Campaign trigger fires when a contact is processed by a campaign.

Use it to build sequences that run alongside outbound dialing: send an SMS before the call attempt, tag contacts based on outcome, or update your CRM after every dial.

## Configuration

Select the campaign this trigger watches. The workflow fires automatically as the campaign processes each contact.

<Note>
  Campaign-triggered workflows are linked to a campaign, not to a specific agent. They run in parallel with the campaign's dialing logic.
</Note>

## Available variables

| Variable         | Description             |
| ---------------- | ----------------------- |
| `{name}`         | Contact's full name     |
| `{first_name}`   | Contact's first name    |
| `{last_name}`    | Contact's last name     |
| `{phone_number}` | Contact's phone number  |
| `{email}`        | Contact's email address |

## Use case

A re-engagement campaign processes 500 contacts. For every contact the campaign dials, the Campaign trigger fires a workflow that checks call outcome, tags interested contacts in HubSpot, and sends a follow-up SMS to anyone who didn't answer.

## Next steps

<Card title="Actions" icon="play" href="/workflows/actions/overview">
  Choose what Wave Runner does after the trigger fires.
</Card>