n8n AI Follow-Up Workflow

Customer: AI | Published: 14.01.2026

ManyChat is already firing the initial “Comment-to-DM” message on both Facebook and Instagram. What I now need is a solid n8n flow that immediately takes over from that point, pipes the user’s replies into a custom-trained AI model, and returns smart, on-brand answers that move the conversation toward a sale. Scope • You’ll receive the existing ManyChat webhook trigger that passes the user ID, the first automated greeting, and any subsequent messages. • In n8n, create a workflow that captures each reply, calls my custom-trained model (it holds all relevant product details and specs), and posts the model’s response back through the correct channel. • The AI’s only job for now is to answer product-related questions clearly and persuasively; no payment or order processing is required in this phase. Tech notes I’m open on the exact connector you use—HTTP Request, OpenAI node, or a custom function—as long as the flow stays maintainable and I can swap the model endpoint later. Please version-control the workflow JSON so I can import it straight into my self-hosted n8n instance. Deliverables 1. n8n workflow in my n8n Acceptance If the workflow echoes back an AI-generated answer that uses my product specs and does so within 2 seconds on a test comment thread, we’re done.