Worked on the bcgov/ECC-OFM-D365 repository to enhance payment and invoice processing by introducing a 45-day date window for allowances and invoices. Focused on backend and API development using C#, the work centralized date eligibility logic through a new helper function, improving consistency in how invoice dates and retroactive payments are handled. Fiscal year determination was aligned with payment dates rather than invoice dates, addressing edge cases in payment accuracy. No major bugs were fixed during this period, as the primary effort was on foundational improvements in date and time manipulation to support more reliable and maintainable financial workflows.