October 2025 monthly summary for DEFRA/epr-calculator-frontend focused on delivering a user-centric UX improvement tied to the billing workflow. Implemented a Billing Draft File Generation Status Banner to inform users when a draft billing file is still generating, reducing confusion during long-running tasks and improving perceived performance. The work was tracked under commit a41f9c368480f5d782dcbb81f1b9aa62c8c6cb9b (#337). No major bugs fixed this month; efforts centered on UX polish, reliability, and clear status communication.

2025-09 Monthly summary highlighting end-to-end cancelled-producer fixes across API and frontend, including database schema corrections, billing logic updates, and UI data integrity improvements. Delivered alignment between data models and AR UI with migrations and UI updates across both repositories (DEFRA/epr-calculator-api and DEFRA/epr-calculator-frontend).

August 2025 performance summary focusing on security hardening in the frontend and data access performance improvements in the API. Key activities centered on mitigating a cookie-related vulnerability and accelerating producer data retrieval to support scaling and reporting requirements.

July 2025 performance summary for the DEFRA EPR Calculator suite. Delivered a comprehensive upgrade to the billing workflow across frontend, backend APIs, and service layers, with a strong emphasis on business value, data integrity, and security. Completed major UI enhancements for billing instructions, introduced explicit confirmation steps for file sends, hardened download paths, and extended planning horizons for future financial years. Also addressed technical debt and SonarQube findings to improve maintainability and code quality.

2025-06 monthly summary focused on delivering robust billing workflows, improved data visibility, and stronger export/reporting capabilities across API, frontend, and service layers. Delivered a new Producer Billing Instructions Retrieval API with endpoint/service logic and comprehensive unit tests, enabling faster, accurate access to producer billing data by run ID. Enhanced the Calculation Run Overview in the frontend with draft billing file details and a refined CSV download flow, improving user experience and data clarity. Strengthened Comms Cost data export and mapping in the service layer, including unit tests and parameter-naming refinements to boost robustness of comms cost reporting. Introduced JSON exporters for cost reporting, notably totalProducerBillWithBadDebtProvision and LA data prep costs with bad debt provision, with accompanying mappers and tests, and added Cancelled Producers CSV export to ensure accurate capture of cancelled producers’ tonnage and latest invoice details. These changes collectively improve billing accuracy, reporting reliability, and business decision support while increasing test coverage and cross-team alignment.

May 2025 monthly summary focusing on delivering robust UI/features, improved error handling, and scalable frontend components that drive business value. Delivered Calculation Run Details view, enhanced file download workflow, UK DateTime formatting standardization, and a reusable paginated Grid component, all underpinned by comprehensive unit tests.

April 2025 (2025-04) performance summary for DEFRA/epr-calculator-frontend. Delivered two major frontend enhancements focused on the Calculation Run workflow and UI, paired with targeted quality improvements in accessibility and error handling. Key outcomes: - Calculation Run Classification and Initial Run UX: introduced classification between Initial and Test runs, added an overview page and initial-run journey, and displayed initial-run status on the dashboard. This enables faster onboarding and clearer run tracking for users. - Calculation Run Details and Payment Calculator Enhancements: refactored and validated run details and payment calculator flows, improved error handling, UI interactions, accessibility, and updated view models and tests to increase reliability and maintainability. - Quality and accessibility improvements: addressed accessibility issues and added error-scenarios validation for classify screens to reduce user friction and support calls. Business value and technical impact: - Clearer run semantics and an end-to-end initial-run journey reduce training time and support tickets while improving data visibility for analysts and users. - Strengthened frontend reliability and test coverage through updated view models and tests, and improved accessibility to meet inclusivity standards. - Traceable delivery through commit references across the two features, enabling easier audits and rollback if needed.