Manage WhatsApp chats centrally on Slack

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Important notice

This workflow is provided as-is. Please review and test before using in production.

1. Workflow Overview

This workflow enables seamless, bidirectional communication between WhatsApp and Slack using n8n. It automates the reception, processing, and forwarding of messages (text, media, and documents) bet...

Best for

Support Chatbot automation workflows
advanced n8n builders looking for reusable templates

Tools used

n8n-nodes-base.whatsapptrigger, n8n-nodes-base.slack, n8n-nodes-base.slacktrigger, n8n-nodes-base.switch, n8n-nodes-base.whatsapp, n8n-nodes-base.filter, n8n-nodes-base.httprequest, n8n-nodes-base.stickynote

Source and attribution

This workflow is cataloged by N8N Workflows and links back to its original n8n.io source page by Usman Liaqat.

Original n8n.io source

1.1 Workflow description

Title: Manage WhatsApp chats centrally on Slack
Workflow name: Manage WhatsApp chats centrally on Slack

Key Features & Flow:

1. WhatsApp to Slack Flow

Trigger: The workflow starts with a WhatsApp Trigger node that listens for new incoming messages via a webhook.
Channel Handling: It checks if a Slack channel with the WhatsApp sender’s number exists
If not, it creates a private Slack channel with the sender's number as the name.
Message Type Routing: A Switch Node (Message Type) inspects the message type (text, image, audio, document).
Based on type: Text: Sends the message directly to Slack.
Image/Audio/Document: Retrieves media URL via WhatsApp API → downloads the media → uploads it to the appropriate Slack channel.

2. Slack to WhatsApp Flow

Trigger: A Slack Trigger listens for new messages or file uploads in Slack.
Message Type Routing: A second Switch Node (Checking Message Type) checks if the message is text or media.
Routing Logic: Text Message: Extracts and forwards it to the WhatsApp contact (identified by the Slack channel name).
Media/File Message: Retrieves media file URL from Slack → downloads it → sends it as a document via WhatsApp API.

Key Integrations:

WhatsApp Cloud API: For receiving messages, downloading media, and sending messages.
Slack API: For creating/getting channels, posting messages, and uploading files.
HTTP Request Node: Used to securely download media from Slack and WhatsApp servers with proper authentication.

Automation Use Case: This workflow is ideal for businesses that handle customer support or conversations over WhatsApp and wish to log, respond, and collaborate using Slack as their internal communication tool.

1.2 Logical Blocks

This catalog entry is organized from the workflow JSON. The node-level section below shows the executable blocks available for review before importing the template.

2. Block-by-Block Analysis

Block 1 - WhatsApp Trigger

Type / Role: n8n-nodes-base.whatsAppTrigger - whatsAppTrigger
Config choices: Version 1

Block 2 - Send Message in Channel

Type / Role: n8n-nodes-base.slack - slack
Config choices: Version 2.3

Block 3 - Slack Trigger

Type / Role: n8n-nodes-base.slackTrigger - slackTrigger
Config choices: Version 1

Block 4 - Message Type

Type / Role: n8n-nodes-base.switch - switch
Config choices: Version 3.2

Block 5 - get audio URL

Type / Role: n8n-nodes-base.whatsApp - whatsApp
Config choices: Version 1

Block 6 - get document URL

Type / Role: n8n-nodes-base.whatsApp - whatsApp
Config choices: Version 1

Block 7 - get image URL

Type / Role: n8n-nodes-base.whatsApp - whatsApp
Config choices: Version 1

Block 8 - Create Channel

Type / Role: n8n-nodes-base.slack - slack
Config choices: Version 2.3

Block 9 - get All Channels

Type / Role: n8n-nodes-base.slack - slack
Config choices: Version 2.3

Block 10 - Filter Channel by Name

Type / Role: n8n-nodes-base.filter - filter
Config choices: Version 2.2

Block 11 - upload media

Type / Role: n8n-nodes-base.slack - slack
Config choices: Version 2.3

Block 12 - download media

Type / Role: n8n-nodes-base.httpRequest - httpRequest
Config choices: Version 4.2

Block 13 - Get Channel by ID

Type / Role: n8n-nodes-base.slack - slack
Config choices: Version 2.3

Block 14 - Checking Message Type

Type / Role: n8n-nodes-base.switch - switch
Config choices: Version 3.2

Block 15 - Send Message

Type / Role: n8n-nodes-base.whatsApp - whatsApp
Config choices: Version 1

Block 16 - Get Media URL

Type / Role: n8n-nodes-base.slack - slack
Config choices: Version 2.3

Block 17 - Download Media

Type / Role: n8n-nodes-base.httpRequest - httpRequest
Config choices: Version 4.2

Block 18 - Send Message1

Type / Role: n8n-nodes-base.whatsApp - whatsApp
Config choices: Version 1

Block 19 - Sticky Note

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 20 - Sticky Note1

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

3. Summary Table

Workflow	Manage WhatsApp chats centrally on Slack
Complexity	advanced
Nodes	20
Categories	Support Chatbot
Author	Usman Liaqat
Published	14 May 2025

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/4037/4037.json as the source template for this automation.
2. Import the template into n8n

Open n8n, import the downloaded JSON, and review each node before activating the workflow.
3. Configure credentials and variables

Replace placeholder credentials, API keys, webhook URLs, account IDs, and environment-specific values with your own settings.
4. Test with sample data

Run the workflow manually or in a staging workspace, inspect node output, and confirm downstream systems receive the expected data.
5. Activate and monitor

Enable the workflow only after testing, then monitor executions, errors, and rate limits during the first production runs.

5. General Notes & Resources

Review imported nodes carefully before activation. This catalog entry is intended to help you inspect the workflow structure, understand required services, and find related templates faster.

Node names, credentials, schedules, webhook paths, and external service limits may need adjustment for your workspace.

Download workflow JSON Original n8n.io source Support Chatbot workflows

Frequently asked questions

What does Manage WhatsApp chats centrally on Slack do?

What do I need before importing this workflow?

Review the workflow JSON, configure any required credentials in n8n, and test the automation in a safe workspace before using it in production.

Can I customize this workflow?

Yes. Use the block-by-block analysis and the downloadable JSON to inspect each node, then adjust credentials, prompts, schedules, filters, or destinations for your Support Chatbot use case.

Usman Liaqat

7 workflows

Nodes

n8n-nodes-base.whatsapptrigger n8n-nodes-base.slack n8n-nodes-base.slacktrigger n8n-nodes-base.switch n8n-nodes-base.whatsapp n8n-nodes-base.filter n8n-nodes-base.httprequest n8n-nodes-base.stickynote

Complexity

advanced

Published 14 May 2025

Likes 0

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Install path: /data/workflows/4037/4037.json

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Manage WhatsApp chats centrally on Slack

Workflow preview

Important notice

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - WhatsApp Trigger

Block 2 - Send Message in Channel

Block 3 - Slack Trigger

Block 4 - Message Type

Block 5 - get audio URL

Block 6 - get document URL

Block 7 - get image URL

Block 8 - Create Channel

Block 9 - get All Channels

Block 10 - Filter Channel by Name

Block 11 - upload media

Block 12 - download media

Block 13 - Get Channel by ID

Block 14 - Checking Message Type

Block 15 - Send Message

Block 16 - Get Media URL

Block 17 - Download Media

Block 18 - Send Message1

Block 19 - Sticky Note

Block 20 - Sticky Note1

3. Summary Table

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

2. Import the template into n8n

3. Configure credentials and variables

4. Test with sample data

5. Activate and monitor

5. General Notes & Resources

Frequently asked questions