In facility operations, Monitoring-Based Commissioning (MBCx) is a methodology that extends far beyond the traditional scope of ‘Fault Detection Diagnostics.’ This approach harnesses the power of advanced data analytics, the acumen of engineering advisors, and the practical skills of field technicians to furnish a comprehensive perspective on a building's operational dynamics. MBCx is not merely a technology but a comprehensive strategy, fostering a culture of efficiency, reliability, trust, and sustainability in building management.