AI agent for handling customer requests via WhatsApp…

This workflow automates customer interactions across multiple channels — WhatsApp, Facebook, and Instagram — using LangChain-powered AI agents within n8n. It enables intelligent message routing, context-aware responses, and seamless integration with CRM, calendar, and billing systems for fully automated, personalized client engagement.

## Who it´s for
- Companies using WhatsApp for customer support
- Marketing agencies managing Facebook and Instagram interactions
- SaaS products with automated sales and billing workflows
- CRM systems enhanced with AI assistants for managers
- Support teams requiring multi-channel integration

## What the automation does
- Receives messages from WhatsApp, Facebook, and Instagram via webhooks
- Routes inquiries to AI agents (Google Gemini, OpenAI) for analysis and response generation
- Checks availability in Google Calendar and books appointments upon booking requests
- Updates customer records in PostgreSQL based on manager inputs or external triggers
- Validates discount eligibility via Stripe and sends personalized coupons
- Accesses product knowledge via vector store (PGVector) for accurate technical responses
- Delivers replies through WhatsApp Business Cloud or social media APIs

## What´s included
- Ready-to-use n8n workflow with LangChain agent support
- Trigger logic for messages, forms, HTTP requests, and manual execution
- Integrations with WhatsApp, Facebook Graph API, Instagram, Google Calendar, Stripe, PostgreSQL, PGVector, and Google Gemini
- Basic setup and adaptation guide

## Requirements for setup
- n8n instance with workflow execution access
- WhatsApp Business Cloud, Facebook, and Instagram API credentials
- Google Calendar access with event creation permissions
- Stripe account with configured prices and coupons
- PostgreSQL database with PGVector extension enabled
- Google Gemini and/or OpenAI API keys
- Configured HTTP endpoints for webhook reception

## Benefits and outcomes
- Reduced support workload through autonomous request handling
- Faster lead response times (within seconds)
- Centralized customer data management in PostgreSQL
- Personalized communication with full context retention
- Automated calendar and billing updates without manual input
- Scalable multi-channel operations from a single workflow
- Support for complex logic and semantic search via vector embeddings

## Important: template only
Important: you are purchasing a ready-made automation workflow template only. Rollout into your infrastructure, connecting specific accounts and services, 1:1 setup help, custom adjustments for non-standard stacks and any consulting support are provided as a separate paid service at an individual rate. To discuss custom work or 1:1 help, contact via Telegram: @gleb923.