Complete business WhatsApp AI-Powered RAG Chatbot using OpenAI

The provided workflow in n8n is designed to create a Business WhatsApp AI RAG (Retrieval-Augmented Generation) Chatbot. How it works: Webhook Setup: The workflow begins by setting up webhooks for verification and response. The Verify webhook receives GET requests and sends back a verification code, while the Respond webhook handles incoming POST requests from Meta regarding WhatsApp messages. Message Handling: Once a message is received, the workflow checks if the incoming JSON contains a user message. If it does, the message is processed further; otherwise, a generic response is sent. AI Agent Interaction: The user's message is passed to the AI Agent node, which uses a conversational agent

Help me set up the n8n workflow "Complete business WhatsApp AI-Powered RAG Chatbot using OpenAI" (https://n8n.io/workflows/2845). It uses: HTTP Request, Google Drive, WhatsApp Business Cloud, AI Agent, Embeddings OpenAI, OpenAI Chat Model, Simple Memory, Token Splitter, Default Data Loader, Qdrant Vector Store, Vector Store Question Answer Tool. Import the template JSON into my n8n instance, list every credential I need to create, and walk me through testing it.