Automated Invoice Processing with AI Verification

This n8n workflow automates the process of managing invoices received via email. It triggers when a new email from a specific sender arrives, checks for PDF attachments and ‘Invoice’ in the subject, then extracts and analyzes the content using Azure GPT-4.1 and Langchain. The AI determines if the document is an invoice, prompting human verification if necessary, and finally saves validated invoices locally while sending notifications at each stage. This workflow is ideal for accounting teams seeking automation in invoice handling, reducing manual effort and increasing accuracy.