Developed comprehensive NFC-e Brazilian localization documentation and workflows for Odoo POS within the odoo/documentation repository, focusing on regulatory compliance and merchant onboarding. Leveraged RST for technical writing, emphasizing fiscal compliance and localization best practices. The work detailed setup and configuration steps, shop and product settings, and the complete lifecycle of NFC-e transactions, including generation, printing, error handling, refunds, and cancellations. Collaborated closely with accounting and localization teams to ensure accuracy and alignment with Brazilian regulations. This update enabled Brazilian merchants to efficiently implement compliant POS workflows, reducing onboarding time and supporting end-to-end transaction management in a localized context.