AI agent for Instagram DM/inbox. Manychat + Open AI integration

Automate Instagram DMs with OpenAI GPT and ManyChat How It Works: Once connected, GPT will automatically initiate conversations with messages from new recipients in Intagram. Who Is This For? This workflow is ideal for marketers, business owners content creators who want to automatically respond to Instagram direct messages using OpenAI GPT. By integrating ManyChat, you can manage conversations, nurture leads, and provide instant replies at scale. What This Workflow Does Captures incoming Instagram DMs through ManyChat’s integration. Processes messages with GPT to generate a relevant response. Delivers instant replies back to Instagram users, creating efficient, AI-driven communication. Setu

Help me set up the n8n workflow "AI agent for Instagram DM/inbox. Manychat + Open AI integration" (https://n8n.io/workflows/2718). It uses: AI Agent, OpenAI Chat Model, Simple Memory. Import the template JSON into my n8n instance, list every credential I need to create, and walk me through testing it.