Customer support WhatsApp bot with Google Docs knowledge base and Gemini AI

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Important notice

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

1. Workflow Overview

Document Aware WhatsApp AI Bot for Customer Support Google Docs Powered WhatsApp Support Agent 24/7 WhatsApp AI Assistant with Live Knowledge from Google Docs Description Template Smart WhatsApp ...

Best for

Support Chatbot automation workflows
AI RAG automation workflows
intermediate n8n builders looking for reusable templates

Tools used

@n8n/n8n-nodes-langchain.agent, n8n-nodes-base.code, n8n-nodes-base.if, n8n-nodes-base.whatsapp, @n8n/n8n-nodes-langchain.lmchatgooglegemini, n8n-nodes-base.whatsapptrigger, n8n-nodes-base.aitransform, n8n-nodes-base.googlesheets

Source and attribution

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

Original n8n.io source

1.1 Workflow description

Title: Customer support WhatsApp bot with Google Docs knowledge base and Gemini AI
Workflow name: Customer support WhatsApp bot with Google Docs knowledge base and Gemini AI

Document-Aware WhatsApp AI Bot for Customer Support
Google Docs-Powered WhatsApp Support Agent
24/7 WhatsApp AI Assistant with Live Knowledge from Google Docs

📝Description Template

Smart WhatsApp AI Assistant Using Google Docs

Help customers instantly on WhatsApp using a smart AI assistant that reads your company’s internal knowledge from a Google Doc in real time. Built for clubs, restaurants, agencies, or any business where clients ask questions based on a policy, FAQ, or services document.

⚙️ How it works

Users send free-form questions to your WhatsApp Business number (e.g. “What are the gym rules?” or “Are you open today?”)
The bot automatically reads your company’s internal Google Doc (policy, schedule, etc.)
It merges the document content with today’s date and the user’s question to craft a custom AI prompt
The AI (Gemini or ChatGPT) then replies back on WhatsApp using natural, helpful language
All conversations are logged to Google Sheets for reporting or audit

> 💡Bonus: The AI even understands dates inside the document and compares them to today’s date — e.g. if your document says “Closed May 25 for 30 days,” it will say “We're currently closed until June 24.

🧰 Set up steps

Connect your WhatsApp Cloud API account (Meta)
Add your Google account and grant access to the Doc containing your company info
Choose your AI model (ChatGPT/OpenAI or Gemini)
Paste your document ID into the Google Docs node
Connect your WhatsApp webhook to Meta (only takes 5 minutes)
Done — start receiving and answering customer questions!

> 📄 Works best with free-tier OpenAI/Gemini, Google Docs, and Meta's Cloud API (no phone required). Everything is modular, extensible, and low-code.

🔄 Customization Tips

Change the Google Doc anytime to update answers — no retraining needed
Add your logo and business name in the AI agent’s “System Prompt”
Add fallback routes like “Escalate to human” if the bot can't help
Clone for multiple brands by duplicating the workflow and swapping in new docs

🤝 Need Help Setting It Up?

If you'd like help connecting your WhatsApp Business API, setting up Google Docs access, or customizing this AI assistant for your business or clients…

📩 I offer setup, branding, and customization services:

WhatsApp Cloud API setup & verification

Google OAuth & Doc structure guidance

AI model configuration (OpenAI / Gemini)

Branding & prompt tone customization

Logging, reporting, and escalation logic

Just send a message via:

Email: [email protected]

WhatsApp: +20 106 180 3236

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 - AI Agent

Type / Role: @n8n/n8n-nodes-langchain.agent - agent
Config choices: Version 1.7

Block 2 - cleanAnswer

Type / Role: n8n-nodes-base.code - code
Config choices: Version 2

Block 3 - 24-hour window check

Type / Role: n8n-nodes-base.code - code
Config choices: Version 2

Block 4 - If

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

Block 5 - Send Pre-approved Template Message to Reopen the Conversation

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

Block 6 - Send AI Agent's Answer

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

Block 7 - Google Gemini Chat Model

Type / Role: @n8n/n8n-nodes-langchain.lmChatGoogleGemini - lmChatGoogleGemini
Config choices: Version 1

Block 8 - when message received

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

Block 9 - Prepare Prompt

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

Block 10 - Google Sheets

Type / Role: n8n-nodes-base.googleSheets - googleSheets
Config choices: Version 4.6

Block 11 - Date & Time

Type / Role: n8n-nodes-base.dateTime - dateTime
Config choices: Version 2

Block 12 - Sticky Note

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

Block 13 - company's knowledge

Type / Role: n8n-nodes-base.googleDocs - googleDocs
Config choices: Version 2

Block 14 - Simple Memory

Type / Role: @n8n/n8n-nodes-langchain.memoryBufferWindow - memoryBufferWindow
Config choices: Version 1.3

3. Summary Table

Workflow	Customer support WhatsApp bot with Google Docs knowledge base and Gemini AI
Complexity	intermediate
Nodes	14
Categories	Support Chatbot, AI RAG
Author	Tharwat Mohamed
Published	16 Jun 2025

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/4966/4966.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 AI RAG workflows

Frequently asked questions

What does Customer support WhatsApp bot with Google Docs knowledge base and Gemini AI do?

Document Aware WhatsApp AI Bot for Customer Support Google Docs Powered WhatsApp Support Agent 24/7 WhatsApp AI Assistant with Live Knowledge from Google Docs Description Template Smart WhatsApp ...

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, AI RAG use case.

Tharwat Mohamed

6 workflows

Nodes

@n8n/n8n-nodes-langchain.agent n8n-nodes-base.code n8n-nodes-base.if n8n-nodes-base.whatsapp @n8n/n8n-nodes-langchain.lmchatgooglegemini n8n-nodes-base.whatsapptrigger n8n-nodes-base.aitransform n8n-nodes-base.googlesheets

Complexity

intermediate

Published 16 Jun 2025

Likes 0

View on n8n.io Download Workflow

Install path: /data/workflows/4966/4966.json

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Customer support WhatsApp bot with Google Docs knowledge base and Gemini AI

Workflow preview

Important notice

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

📝Description Template

Smart WhatsApp AI Assistant Using Google Docs

⚙️ How it works

🧰 Set up steps

🔄 Customization Tips

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - AI Agent

Block 2 - cleanAnswer

Block 3 - 24-hour window check

Block 4 - If

Block 5 - Send Pre-approved Template Message to Reopen the Conversation

Block 6 - Send AI Agent's Answer

Block 7 - Google Gemini Chat Model

Block 8 - when message received

Block 9 - Prepare Prompt

Block 10 - Google Sheets

Block 11 - Date & Time

Block 12 - Sticky Note

Block 13 - company's knowledge

Block 14 - Simple Memory

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