AI-Driven Lead Response Engine for WhatsApp & Web Forms

Transform your lead management chaos into a systematic, AI-powered response engine that captures leads from WhatsApp, web forms, social media, and SMS—then automatically qualifies, scores, and responds to every prospect within minutes, ensuring you never miss another sales opportunity.

What this workflow does

This comprehensive n8n automation workflow creates a centralized lead processing hub that handles multi-channel lead intake seamlessly. The system accepts webhooks from web forms, WhatsApp Cloud API, Instagram/Facebook DMs, Twilio SMS, and missed-call adapters, then normalizes all inputs into a standardized lead format.

The workflow features intelligent deduplication through idempotency checking, preventing duplicate processing of recent entries. Each lead is automatically scored 1-10 using OpenRouter's GPT-4o-mini AI model for instant qualification. All lead data, including scores, sources, and status updates, are logged to Google Sheets for comprehensive tracking. The system sends personalized acknowledgment messages back through the original contact channel and triggers owner alerts for high-scoring prospects.

Use cases

• Small businesses managing leads from website forms, WhatsApp Business, and social media channels
• Solo operators who need instant lead qualification and response automation
• Service providers wanting to maintain consistent follow-up across multiple communication platforms
• Sales teams requiring centralized lead scoring and tracking in Google Sheets

Technical details

Built using n8n's webhook, code, if, switch, no op, and Twilio nodes, this workflow integrates with Google Sheets for data management, OpenRouter API for AI-powered lead scoring, WhatsApp Cloud API for messaging, and Twilio for SMS handling. The system includes dry_run testing capabilities and customizable AI scoring prompts.

Setup requires an n8n instance, Google Sheets account, OpenRouter API key, and optional WhatsApp Cloud API or Twilio credentials. The workflow includes detailed customization options for AI scoring prompts and channel-specific reply templates, making it adaptable to various business communication needs.