Manage WhatsApp Chats Centrally on Slack

This workflow enables seamless, bidirectional communication between WhatsApp and Slack using n8n. It automates the reception, processing, and forwarding of messages (text, media, and documents) between users on WhatsApp and private Slack channels. Key Features & Flow: 1. WhatsApp to Slack Flow Trigger: The workflow starts with a WhatsApp Trigger node that listens for new incoming messages via a webhook. Channel Handling: It checks if a Slack channel with the WhatsApp sender’s number exists If not, it creates a private Slack channel with the sender's number as the name. Message Type Routing: A Switch Node (Message Type) inspects the message type (text, image, audio, document). Based on type:

Help me set up the n8n workflow "Manage WhatsApp Chats Centrally on Slack" (https://n8n.io/workflows/4037). It uses: HTTP Request, Slack, WhatsApp Business Cloud. Import the template JSON into my n8n instance, list every credential I need to create, and walk me through testing it.