AI-Generated LinkedIn Posts with OpenAI, Google Sheets & Email Approval Workflow

How it works This workflow automates the process of creating, approving, and optionally posting LinkedIn content from a Google Sheet. Here's a high-level overview: Scheduled Trigger: Runs automatically based on your defined time interval (daily, weekly, etc.). Fetch Data from Google Sheets: Pulls the first row from your sheet where Status is marked as Pending. Generate LinkedIn Post Content: Uses OpenAI to create a professional LinkedIn post using the Post Description and Instructions from the sheet. Format & Prepare Data: Formats the generated content along with the original instruction and post description for email. Send for Approval: Sends an email to a predefined user (e.g., marketing t

Help me set up the n8n workflow "AI-Generated LinkedIn Posts with OpenAI, Google Sheets & Email Approval Workflow" (https://n8n.io/workflows/4005). It uses: Google Sheets, HTTP Request, Gmail, LinkedIn, Basic LLM Chain, OpenAI Chat Model. Import the template JSON into my n8n instance, list every credential I need to create, and walk me through testing it.