Slack Approval Automation with n8n

# Slack approval automation with n8n using dual webhooks and channel feedback

This workflow automates approval processes and data collection in Slack using two independent webhooks integrated via n8n. Ideal for teams needing fast response to requests, button-based decisions, and structured feedback directly in Slack.

## Who it´s for
- Teams using Slack for internal approval processes
- Managers who need to automate decision collection from employees
- Administrators setting up secure webhooks for integrations
- Developers deploying interactive Slack bots without backend development

## What the automation does
- Receives user data via the first webhook (e.g., vacation request)
- Handles Slack actions (approve/reject) through the second webhook
- Formats responses with emojis, timestamps, and status using n8n’s Function Node
- Sends structured output back to a predefined Slack channel
- Secures webhooks with Basic Authentication

## What´s included
- Ready-to-use n8n workflow
- Trigger and handler logic based on dual webhooks
- Integrations with Slack and HTTP API via secured Basic Auth webhooks
- Basic text instructions for launch and adaptation

## Requirements for setup
- n8n account (self-hosted or cloud)
- Slack account with permissions to create and configure webhooks
- Access to manage webhooks and channels in Slack

## Benefits and outcomes
- Faster approvals without manual oversight
- Reduced manager workload through automated routing
- Clear audit trail: who approved what and when
- Interactive Slack experience without building a bot from scratch
- Incoming data protection via basic authentication
- Scalable to other use cases (onboarding, procurement, etc.)

## Important: template only
Important: you are purchasing a ready-made automation workflow template only. Rollout into your infrastructure, connecting specific accounts and services, 1:1 setup help, custom adjustments for non-standard stacks and any consulting support are provided as a separate paid service at an individual rate. To discuss custom work or 1:1 help, contact via chat