Invoice Processor & Validator with OCR, AI & Google Sheets | n8n workflow template

πŸ“ Say goodbye to manual invoice checking!

This smart workflow automates your entire invoice processing pipeline using AI, OCR, and Google Sheets.

βš™οΈ What This Workflow Does:

  • πŸ“₯ 1. Reads an invoice PDF
    β€” Select a local PDF invoice from your machine.
  • πŸ” 2. Extracts raw text using OCR
    β€” Converts scanned or digital PDFs into readable text.
  • 🧠 3. AI Agent processes the text
    β€” Transforms messy raw text into clean JSON using natural language understanding.
  • 🧱 4. Structures and refines the JSON
    β€” Converts AI output into a structured, usable format.
  • πŸ”„ 5. Splits item-wise data
    β€” Extracts individual invoice line items with all details.
  • πŸ†” 6. Generates unique keys
    β€” Creates a unique identifier for each item for tracking.
  • πŸ“Š 7. Updates Google Sheet
    β€” Adds extracted items to your designated sheet automatically.
  • πŸ“‚ 8. Fetches master item data
    β€” Loads your internal product master to validate against.
  • βœ… 9. Validates item name & cost
    β€” Compares extracted items with your official records to verify accuracy.
  • πŸ“Œ 10. Updates results per item
    β€” Marks each item as Valid or Invalid in the sheet based on matching.

πŸ’Ό Use Case:

Perfect for businesses, freelancers, or operations teams who receive invoices and want to automate validation, detect billing errors, and log everything seamlessly in Google Sheets β€” all using the power of AI + n8n.

πŸ” Fast. Accurate. Zero manual work.

#OCR #AI #Invoices #Automation

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