WhatsApp Group Chat with Your Vector Database — No Facebook Business Required

Enable smart, real-time answers in your WhatsApp groups using a custom webhook, Pinecone vector database, and no Facebook Business setup.

> 🟡 Note: This template uses a custom WhatsApp webhook. It does not use the official WhatsApp Business API.

👥 Who is this for?

This workflow is designed for individuals and teams who want to enable smart WhatsApp group automation — without going through Meta’s official WhatsApp Business API. Ideal for small businesses, internal teams, communities, and personal power users.

❓ What problem is this solving?

Setting up WhatsApp bots with intelligent responses often requires approval from Meta and a verified business account. This workflow removes those barriers by using a self-hosted webhook to handle incoming messages and respond using a document-trained AI via Pinecone.

⚙️ What this workflow does

Connects a regular WhatsApp number to a custom webhook
Adds the bot to any group chat (it stays silent unless mentioned)
Indexes documents from Google Drive into Pinecone
Responds with intelligent, context-aware answers from your custom knowledge base
Auto-updates its knowledge every minute as the document changes

🛠️ Setup

Step 1: Connect Google Drive

Set up your Google Drive credentials in n8n

Step 2: Configure Pinecone

Create an index in Pinecone
Dimension: 1536
Select this index in both Pinecone nodes
Click Test Workflow to ingest your document into Pinecone

Step 3: Get Access to the WhatsApp Webhook

Fill out this form to request access
You’ll receive a WhatsApp confirmation for linking

Step 4: Test WhatsApp Integration

✅ One-on-one test: Send a message from another number
👥 Group test: Add the bot to a group; it will only respond when tagged

🧩 How to customize this workflow

Modify the system prompt inside the AI agent node to control tone and behavior
Update the connected Google Doc to match your specific domain (e.g. FAQs, SOPs, product manuals)
Adjust the Pinecone sync frequency if you want updates more or less often

📚 Use cases

Customer Support**: Instant, intelligent replies in WhatsApp without live agents
Team Knowledge Bot**: Tag the bot for quick access to SOPs and internal docs
Community Groups**: Automate common questions while keeping noise low
Personal AI Assistant**: A WhatsApp chatbot trained on your notes and files

📝 Sticky Note Suggestion

💬 What this template does:
> Enables an AI bot in your WhatsApp group that answers questions based on a Google Doc you provide. It uses a custom webhook, Google Drive, and Pinecone.

🔧 Requirements:
> Google Drive account
> Pinecone account with an index (dimension 1536)
> Access to the custom WhatsApp webhook (see setup steps)