🤖 Facebook Messenger Smart Chatbot - Smart Batch, Format & History with n8n Data Table v3

Version 2026 - Adaptable to n8n v1.113+ and v2.x

by Nguyen Thieu Toan (Jay Nguyen)

📖 Overview

A production-ready, enterprise-grade chatbot solution for Facebook Messenger built entirely in n8n. Features intelligent message batching, session-aware conversation tracking, multi-page support, and natural AI-powered responses.

Perfect for:

• 💼 Customer support automation
• 🛒 E-commerce product inquiries
• 📅 Appointment scheduling & consultation booking
• 🎓 Educational assistants & training
• 🤝 Lead qualification & sales automation

Requirements: n8n v1.113.0+, Facebook App with Messenger, Google Gemini API key (or compatible LLM)

🔗 Complementary Workflow

Facebook Messenger Chatbot – Smart Human Takeover, Auto Pause & Context-Aware

Adds intelligent human agent detection and automatic AI pause. When a human joins, AI pauses for configurable duration, then resumes automatically.

Why combine?

• Smart Batch (v3): Multi-message batching, spam reduction
• Human Takeover: AI pauses for humans, smooth collaboration

👉 Access workflow

⚡ What's New in Version 3

Major Upgrades

Architecture Comparison:
Previous version had fixed timing, parallel updates, no multi-page handling, and no cleanup.
New version introduces flexibility, sequential processing, and scalability for real-world use.

🎯 Key Features

• 🔄 Smart Batching: Groups consecutive messages within configurable window (default 7s)
• 🧠 Session-Aware Context: Distinguishes old vs. current sessions for temporal awareness
• 📋 Full History: Stores complete chat logs with both user and page responses
• 👀 Natural UX: "Seen" marker and "Typing..." indicator for human-like feel
• 🎯 AI Integration: Extensible prompts for domain-specific consulting (Gemini, Groq, or any LLM)
• 🌐 Multi-Language: Handles Vietnamese (anh/chị/em) with customizable settings
• 🏢 Multi-Page Ready: Single workflow serves multiple Facebook Pages simultaneously

Technical Highlights: Idempotent processing, timezone-aware timestamps (Asia/Ho_Chi_Minh), Facebook API v24.0 compatible, sequential delivery with rate limiting protection, auto cleanup (keeps last 15 rows)

🏗️ How It Works

### 🔄 General Flow

Reception & Validation → Batching & Storage → Context Aggregation  
        ↓                      ↓                      ↓  
   Identify input        Store for later use     Combine with history  
   Filter duplicates     Apply short delay       Build conversation context  

                              ↓  

                AI Processing → Delivery & Cleanup  
                         ↓                ↓  
                 Generate response     Format & send  
                 Add signals           Maintain records  
                 Ensure continuity     Clean old data  

🛠️ Setup Guide

Step 1: Facebook App

Create app, add Messenger, set webhook, get token, subscribe page

Step 2: Data Table

Prepare tables for messages batching

Step 3: Workflow

Import template, set context, link tables, connect AI

Step 4: Test

Activate workflow, send test messages, verify pause/resume

👤 About the Author

Nguyen Thieu Toan (Nguyễn Thiệu Toàn / Jay Nguyen)

AI Automation Specialist | n8n Workflow Expert | Business Optimization Consultant

Services: AI Automation Solutions, n8n Workflow Development, Custom Chatbot Implementation, Training Programs

Contact:

• 🌐 nguyenthieutoan.com
• 📘 Facebook
• 💼 LinkedIn
• 🐦 X (Twitter)
• 📺 YouTube
• 📧 [email protected]

GenStaff Company: genstaff.net | [email protected]

📄 License

After purchase, use in commercial/personal projects. No redistribution or resale. Keep author attribution when sharing.

Last Updated: December 18, 2025 | Version: 3.0 | n8n Compatibility: v1.123.0+ and v2.0.0+ | Facebook API: v24.0

Ready to transform your Facebook Messenger into an intelligent AI assistant? Import this workflow and start automating today! 🚀