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Implementing n8n whatsapp business api automation with RAG for Accurate Replies

To automate WhatsApp Business API replies using n8n and RAG, you must integrate an LLM node with a vector database reference.

  • Upload FAQ documents to vector database using Embedding node in n8n
  • Split WhatsApp message text, generate semantic vectors for similarity search
  • Retrieve relevant document chunks, feed to LLM for context-aware reply generation

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