Built a WhatsApp AI sales agent + a RAG knowledge chatbot in n8n (with setup guides)

Hey everyone, sharing two workflows I built recently that might be useful if you’re working on similar things.

  1. WhatsApp AI Sales Agent and Lead Qualification
  2. Answers customer questions on WhatsApp straight from a product and FAQ knowledge base (vector store), keeps the conversation natural while gradually asking qualification questions, then scores each lead 0-100 based on budget, need and timeline. Leads above the threshold get logged to Sheets/CRM and trigger a Slack alert, everything else just keeps chatting without pinging anyone.

RAG Knowledge Chatbot

Answers strictly from your real documents, PDF, Drive, Notion into a vector store, so no hallucinated answers. If it can’t find something in the knowledge base, it says so honestly and escalates to a human via Slack instead of guessing.

Both come with a setup guide, work on Cloud or self-hosted, and are available in German and English. Put them up here if anyone wants the ready-made version: n8n AI Automation Starter Pack – 5 Production-Ready AI Workflows - happy to also just talk through the node setup if you’re building something similar yourself, especially curious how others handle the confidence too low to escalate pattern.