Automated Invoice Processing and Validation Workflow

This n8n workflow is designed to automate the extraction, validation, and recording of invoice data from PDF files into Google Sheets. It streamlines the process of reading invoice PDFs, extracting detailed line items using language models, matching these items with master data, and updating validation results automatically. The workflow begins with manual trigger, reads the invoice PDF file from disk, and uses a language model to extract structured invoice details. It then processes line items, compares them to master data for accuracy, and updates results in Google Sheets. This automation is useful for accounting, finance, or procurement teams aiming to improve invoice validation efficiency and accuracy.