Commercial buildings, such as offices, retail stores, hotels, and restaurants, have different goals and standards when it comes to BAS. Some of the challenges of BAS in commercial buildings include the compliance with codes and regulations, the coordination with multiple stakeholders, the scalability and flexibility of systems, and the reliability and resilience of operations. Some of the opportunities of BAS in commercial buildings include the enhancement of productivity, customer satisfaction, and brand image, the reduction of operational costs and environmental impacts, the improvement of indoor air quality and safety, and the generation of data and insights.