Polish e-Invoice Integration with NAV 2009 R2 (Python + n8n)

Techno-Functional Consultant
Navision Python n8n API SQL
Packaging & Labeling

Project Overview

Polish e-Invoice Integration with NAV 2009 R2 (Python + n8n): an ERP integration project delivered by Sumit Shede. Analyzed GST e-invoicing requirements for legacy NAV 2009 R2. Industries: Packaging & Labeling.

My Role & Contributions

  • Analyzed GST e-invoicing requirements for legacy NAV 2009 R2
  • Designed hybrid integration using Python and n8n workflows
  • Automated IRN generation, QR code, and invoice validation
  • Built data extraction from Classic client and pushed to APIs
  • Handled API authentication, retries, and error logging
  • Synced invoice status back to NAV
  • Supported UAT, compliance checks, and go-live

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