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Invoice Processor & Validator with OCR, AI & Google Sheets

Created by

Dhrumil Patel

Last update

Last update 16 days ago

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📝 Say goodbye to manual invoice checking!

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


⚙️ What This Workflow Does:

📥 1. Reads an invoice PDF
— Select a local PDF invoice from your machine.

🔍 2. Extracts raw text using OCR
— Converts scanned or digital PDFs into readable text.

🧠 3. AI Agent processes the text
— Transforms messy raw text into clean JSON using natural language understanding.

🧱 4. Structures and refines the JSON
— Converts AI output into a structured, usable format.

🔄 5. Splits item-wise data
— Extracts individual invoice line items with all details.

🆔 6. Generates unique keys
— Creates a unique identifier for each item for tracking.

📊 7. Updates Google Sheet
— Adds extracted items to your designated sheet automatically.

📂 8. Fetches master item data
— Loads your internal product master to validate against.

9. Validates item name & cost
— Compares extracted items with your official records to verify accuracy.

📌 10. Updates results per item
— Marks each item as Valid or Invalid in the sheet based on matching.


💼 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 — all using the power of AI + n8n.

🔁 Fast. Accurate. Zero manual work.


#OCR #AI #Invoices #Automation.