During January 2025, contributed to the Unimake/DFe repository by integrating Juazeiro, BA WEBIS municipality support and resolving a critical SOAP message structure issue. Leveraging C#, .NET, and XML manipulation, addressed malformed nfseCabecMsg tags across all services, ensuring standardized message headers and improved data integrity for NFSe flows. The technical approach focused on configuration-driven onboarding, enabling faster municipal integration and reducing manual intervention in fiscal document processing. These updates enhanced interoperability and expanded business coverage by supporting additional municipalities, demonstrating proficiency in SOAP protocol handling and XML configuration within a complex, service-oriented architecture for fiscal document management.