Automate Sales Calls: AI-Powered n8n Workflow with GPT-4o

Transform your sales process with an intelligent n8n workflow that automatically handles inbound leads, qualifies prospects, and schedules appointments using GPT-4o. This powerful automation connects HighLevel (LeadConnector), Supabase, and OpenAI to create a seamless AI-powered sales assistant that never sleeps.

What this workflow does

This comprehensive automation workflow streamlines your entire sales conversation process:

• Receives inbound messages from HighLevel (LeadConnector) via webhook triggers
• Manages appointment bookings by fetching upcoming appointments from HighLevel and storing event IDs on contact records
• Loads conversation history from Supabase/Postgres database and formats it into readable transcripts for context
• AI-powered lead qualification using OpenAI GPT-4o with chat memory to assess prospects intelligently
• Updates HighLevel custom fields automatically including business type, inquiry volume, response time, team size, bottleneck analysis, monthly revenue, and AI experience
• Smart scheduling integration that queries HighLevel calendar for available time slots and handles booking or rescheduling
• Sends personalized responses back to leads through HighLevel conversations (SMS/messaging)

Use cases

• SaaS companies qualifying inbound demo requests and scheduling product tours
• Service businesses handling consultation bookings and client intake processes
• Sales teams automating lead qualification and appointment setting workflows
• Marketing agencies managing prospect conversations and discovery calls

Technical details

Built with essential n8n nodes including webhook, Supabase integration, code execution, conditional logic (if/switch), and data transformation (set) nodes. Requires credentials for OpenAI and Supabase. The workflow leverages HighLevel's API for contact management, appointment handling, and messaging capabilities while maintaining conversation context through Postgres chat memory.

Ready to deploy and customize for your specific sales process and qualification criteria.