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Invoice processor & validator with OCR, AI & Google Sheets

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Created by: Dhrumil Patel || itechdp
Dhrumil Patel

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Last update 4 months ago

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๐Ÿ“ Say goodbye to manual invoice checking!

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


โš™๏ธ What This Workflow Does:

๐Ÿ“ฅ 1. Reads an invoice PDF
โ€” Select a local PDF invoice from your machine.

๐Ÿ” 2. Extracts raw text using OCR
โ€” Converts scanned or digital PDFs into readable text.

๐Ÿง  3. AI Agent processes the text
โ€” Transforms messy raw text into clean JSON using natural language understanding.

๐Ÿงฑ 4. Structures and refines the JSON
โ€” Converts AI output into a structured, usable format.

๐Ÿ”„ 5. Splits item-wise data
โ€” Extracts individual invoice line items with all details.

๐Ÿ†” 6. Generates unique keys
โ€” Creates a unique identifier for each item for tracking.

๐Ÿ“Š 7. Updates Google Sheet
โ€” Adds extracted items to your designated sheet automatically.

๐Ÿ“‚ 8. Fetches master item data
โ€” Loads your internal product master to validate against.

โœ… 9. Validates item name & cost
โ€” Compares extracted items with your official records to verify accuracy.

๐Ÿ“Œ 10. Updates results per item
โ€” Marks each item as Valid or Invalid in the sheet based on matching.


๐Ÿ’ผ 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 โ€” all using the power of AI + n8n.

๐Ÿ” Fast. Accurate. Zero manual work.


#OCR #AI #Invoices #Automation.