> ## 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.

# Slack

> Send a message to a Slack channel or user from a workflow.

The Slack action sends a message to a Slack channel or direct message when the workflow reaches this node.

## Requirements

Slack must be connected under **Settings → Integrations** before this action is available.

## Configuration

| Field       | Required | Description                                                   |
| ----------- | -------- | ------------------------------------------------------------- |
| **Channel** | Yes      | Channel name (e.g. `#sales`) or user ID                       |
| **Message** | Yes      | Message content. Supports variables. Maximum 2,000 characters |

<Note>
  Private Slack channels require you to invite the Wave Runner app to the channel before it can post. Run `/invite @waverunner` in the channel.
</Note>

## Use case

An End of Call trigger fires when a call outcome is `interested`. The Slack action posts to `#sales`: "New interested lead: {name} ({phone_number}). Call summary: {summary}." The sales team sees every hot lead in real time without checking the dashboard.

## Next steps

<Card title="Variables" icon="code" href="/workflows/variables">
  Insert call data and contact details into your Slack messages.
</Card>