Extract Supplier Invoice Fields with n8n Form + Repondea

Extract supplier invoice fields in minutes with an n8n Form + Repondea

Turn a supplier invoice PDF, PNG, or JPEG into a structured JSON review package—using n8n Form input and Repondea Invoice CSV—then stop before accounting entries or automatic CSV export. Designed for fast validation, fewer manual copy-pastes, and cleaner invoice data capture.

What this workflow does

• Accepts an invoice upload via an n8n Form Trigger as a binary property named invoice (PDF, PNG, or JPEG; up to 5 MB and three PDF pages).
• Sends the document to Repondea using an HTTP Request with Header Auth (Bearer token). A verified Repondea account provides a key—no model API key is required.
• Generates eight suggested fields for human review: supplier, invoice number, invoice date, due date, currency, net total, tax, and gross total.
• Highlights issues with warnings when fields are missing or inconsistent.
• Returns JSON for review: the final node adds human_review_required and the original filename. The workflow stops before accounting steps or automatic CSV export.
• After submitting, open the Form output, download the JSON, and import it into the Repondea workspace to compare, correct, and confirm.

Use cases

• AP teams needing invoice OCR field extraction with a review gate before CSV export.
• SaaS operators automating supplier onboarding workflows by standardizing invoice metadata.
• Automation engineers prototyping n8n + Repondea invoice processing with clear failure visibility (warnings).

Technical details

• Nodes used: Set, Sticky Note, Form Trigger, HTTP Request.
• Integrations: n8n Form (file upload) and Repondea Invoice CSV via Header Auth (Bearer).
• Output: JSON for human review with human_review_required and the original filename.