Automated Business Trip Expense Reporting with GPT-4

This n8n workflow automates the process of business trip expense reporting, streamlining expense claim submissions for employees. When an employee submits a form with trip details and receipts, the workflow uploads receipts to Google Drive, uses GPT-4 to extract structured expense data from PDFs, logs the expenses in a Google Sheet for tracking, and generates a detailed HTML email summary. The email is then sent to the finance team for review and reimbursement. This automation reduces manual effort, minimizes errors, and accelerates expense processing, making it ideal for organizations seeking efficient travel expense management.