This study examines the impact of digital procurement transformation on sustainability, focusing on how digitalization enhances procurement efficiency, while addressing sustainability challenges. A case study of PT XYZ, a financial services company, explores the increasing complexity of procurement, as it faces challenges in navigating complex regulatory requirements, dynamic operational demands, prevention of bribery and corruption, and necessary risk mitigation. By proposing the digitalization of sustainable procurement, this study offers value by reducing complexity and promoting inclusive economic growth. Data were collected from interviews with employees at a financial services company, utilizing semi-structured discussions with procurement professionals, sustainability officers, and operational stakeholders, including focus group discussions, to capture collective insights. This study applies the Kraljic Matrix framework and ABC Classification to define procurement categories and activities based on two primary factors: profit impact and supply risk.  The analysis identified key themes and patterns, assessing three analytical matrices: efficiency gains from e-procurement systems, reductions in environmental impact from data-driven decisions, and challenges in integrating sustainability with digital platforms. The qualitative findings indicate that procurement digitalization enhances stakeholder experience while streamlined procurement process benefits small and medium enterprises, allowing business users to procure directly through a sustainability digital platform without needing approval from the procurement department. The results show that 96% of stakeholders reported positive impacts, particularly in terms of cost, innovation, flexibility, and social responsibility. This study offers valuable insights into the effects of digitalization on sustainable procurement.