Who is this for? This n8n workflow is designed for businesses, customer support teams, and page administrators who want to automate their Facebook Messenger responses while maintaining the ability to escalate to human agents when needed. It's perfect for e-commerce stores, service providers, and organizations that receive customer inquiries through Facebook Messenger and want to provide instant, intelligent responses 24/7. The workflow can handle both text messages and attachments, automatically detects when human intervention is needed, and seamlessly transfers the conversation to a human admin. What this Workflow Does This n8n workflow creates an intelligent Facebook Messenger chatbot that can understand and respond to customer messages in both English and Bengali. It automatically classifies incoming messages to determine if they require human assistance, processes attachments by identifying file types, generates appropriate responses using AI, and escalates conversations to human admins when necessary. The workflow maintains conversation context through memory and can reference external documents for more accurate responses. Key Features Multi-language Support : Automatically detects and responds in English or Bengali Message Classification : Determines if a message requires human intervention Attachment Handling : Identifies and processes different file types (images, documents, etc.) AI-powered Responses : Generates intelligent, context-aware responses using OpenAI Admin Escalation : Seamlessly transfers conversations to human agents when needed Memory Management : Maintains conversation context for more natural interactions Document Integration : Can reference external Google Docs for information Webhook Verification : Properly handles Facebook's webhook verification process Requirements Facebook Page with Messenger functionality Facebook Graph API credentials OpenAI API credentials Google Docs API credentials (optional) n8n Instance (self-hosted or cloud) Admin Facebook user ID for escalation Workflow Components 1. Webhook Setup Webhook : Receives incoming messages from Facebook Messenger If3 : Verifies webhook subscription requests Respond to Webhook : Completes the verification process 2. Message Processing If : Determines if the message contains text or attachments Classify text : Analyzes text messages to determine if human intervention is needed AI Agent1 : Identifies attachment types 3. AI Response Generation AI Agent : Generates intelligent responses to user messages OpenAI Chat : Powers the AI Agent with language model capabilities Think : Ensures responses match the user's language and tone Memory : Maintains conversation context HTTP : Enables external data retrieval Google Docs : Allows referencing external documentation 4. Escalation Logic If2 : Determines if escalation is needed based on classification Edit Fields1 : Prepares data for escalation messages Wait3 : Adds delay before sending messages 5. Message Delivery Admin Message : Notifies admin when escalation is needed User Message : Confirms to user that their message was forwarded Admin Message1 : Notifies admin about attachments User Replay Message : Sends AI-generated responses to users Notes The workflow uses a custom session key for memory management Admin ID should be updated to match your Facebook admin user ID The system is configured to respond in both English and Bengali Webhook verification requires a specific verify token (set to "admin" in this example) The workflow includes appropriate delays to prevent rate limiting Ideal Use Cases Customer service automation for e-commerce stores Lead qualification and initial response After-hours customer support Information dissemination for organizations Appointment scheduling and basic inquiries Product information and recommendation requests Support & Help WhatsApp : Chat on WhatsApp Discord : SpaGreen Community Facebook Group : SpaGreen Support Website : https://spagreen.net Developer Portfolio : Codecanyon SpaGreen