—The Indonesia National Single Window System (SINSW) is a platform developed by the Indonesia National Single Window Agency (LNSW) using Agile methodology, specifically the Scrum framework. Several challenges were identified during its development, including deviations from the Scrum Guide and the absence of formal, regular events necessary for effective team coordination and alignment. These issues revealed gaps in Scrum implementation and broader difficulties associated with scaling Agile practices beyond the team level. Therefore, this study applied a scaling Agile model based on Capability Maturity Model Integration (CMMI) 2 to evaluate the agency's existing Agile process and recommend targeted improvements to Agile practices. The evaluation involved qualitative interviews with key stakeholders, including the Project Management Officer, System Analyst, and developers. The interviews were subsequently quantified using the Key Process Area (KPA) rating framework. The findings led to actionable recommendations to optimize the Agile process, improve team collaboration, and support SINSW’s success. © (2026), (Science and Information Organization). All rights reserved.