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.

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👥 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.

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❓ 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.

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⚙️ 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

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🛠️ Setup

Step 1: Connect Google Drive

• Set up your Google Drive credentials in n8n

Step 2: Configure Pinecone

1. Create an index in Pinecone
   • Dimension: 1536
2. Select this index in both Pinecone nodes
3. 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

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🧩 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

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📚 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

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📝 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)