Invoice Data Extraction with LlamaParse & OpenAI
Automates PDF invoice parsing from emails using LlamaParse for markdown conversion and OpenAI for accurate data extraction, exporting to Google Sheets for finance efficiency.
This n8n workflow streamlines invoice processing by monitoring a Gmail inbox for supplier invoices with PDF attachments. It automatically downloads the files, processes them through LlamaParse—a specialized service that converts complex PDF structures like tables into markdown format for better AI handling—and then uses an OpenAI-powered AI agent to extract structured data reliably.
Key benefits include massive time and cost savings for accounts and finance teams, reducing manual data entry errors and accelerating workflows. The output is seamlessly exported to Google Sheets, enabling easy integration with accounting software or further analysis.
Ideal use cases: Automating accounts payable in small to medium businesses, handling high-volume supplier invoices, or customizing for other services like Outlook/Excel. Requires Gmail setup with 'invoice synced' label, LlamaParse/OpenAI accounts, and Google Sheets.
New buyers can create an account from the cart to unlock a controlled $10 first-purchase credit on eligible orders of $25+.
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How to import this workflow into n8n
- 1Purchase or download the workflow to get the n8n workflow JSON file.
- 2In your n8n instance, open Workflows and choose "Import from File" (or paste the JSON with Ctrl+V on the canvas).
- 3Open each node marked with a credential warning and connect your own accounts and API keys.
- 4Run the workflow once manually to verify the data flow, then toggle it to Active.
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