I designed an automated Navision → n8n → Odoo → Peppol workflow. Navision generates a daily Excel export, which n8n automatically retrieves, parses, validates, and maps before using the Odoo API to create customer invoices with their corresponding invoice lines.

The workflow also includes error handling, logging, validation, secure API authentication, scheduling, and failure notifications. Once invoices are created in Odoo, its standard Peppol functionality handles electronic delivery to B2B customers. The solution reduced manual invoice processing, created a more transparent and traceable workflow, and provided a scalable foundation for the company's transition from Navision to Odoo. It also prepared the invoicing process for Peppol e-invoicing while keeping Navision as the primary accounting system during the transition.