Follow-Up Agent workflow canvas preview
WhatsApp · Evolution API 16 nodes

Follow-Up Agent

Automated WhatsApp follow-up agent with memory.

About this template

Monitors contacts that have not replied within a configurable time window and sends automated follow-ups via WhatsApp using Evolution API. The agent uses OpenAI to personalize each message based on conversation history stored in Supabase. Includes backoff logic to prevent spam and a Postgres table for tracking each contact's status. Sixteen nodes, four external integrations.

What you get

  • workflow.json ready to import
  • SQL schema for contacts table and follow-up log
  • README in PT-BR and EN
  • ARCHITECTURE.md with flow diagram
  • .env.example with all variables
  • Commercial LICENSE

Prerequisites

  • n8n self-hosted with internet access
  • Running and configured Evolution API instance
  • Supabase project with contacts table (schema included)
  • OpenAI API key (GPT-4o-mini or above recommended)

Built on

n8n OpenAI Evolution API Supabase Postgres