Automate Invoice Processing with AI and Google Drive

Tired of manually entering invoice data? This n8n workflow automates the entire process. It starts by monitoring a specified Google Drive folder for new invoice PDFs. Upon detection, the PDF is downloaded, its text extracted, and then fed into a powerful AI model (GPT-4o-mini) that acts as an intelligent invoice parser. The AI is trained to identify and extract crucial information like invoice number, dates, vendor, amounts, line items, and importantly, categorizes the invoice (e.g., Utilities, Office Supplies). The structured data is then seamlessly inserted into a Google Sheet for easy tracking and analysis. This solution significantly reduces manual effort, improves data accuracy, and provides a clear overview of your expenses.