uilt an advanced Multimodal AI WhatsApp Support Agent in n8n handling Text, Voice Notes, and Image inputs. The workflow converts audio messages using OpenAI Whisper and processes images via GPT-4o Vision to extract data. Driven by a strict System Prompt, the agent answers customer inquiries exclusively using internal business documents, guaranteeing zero hallucination. If a query falls outside the knowledge base, the workflow flags it for human support. This system slashes response times and automates complex support channels seamlessly.