This document discusses creating a culture of data use in health decision making. It outlines several constraints to using data currently, including poor data quality, lack of skills and infrastructure. A systems approach is needed that strengthens multiple areas like data quality, availability, analysis tools, governance and supervision. The evolution to an "analytical culture" requires indicators, assessments and technical products. The example of Bangladesh's success with a contraceptive dashboard app that tracks supply points is provided. Key factors in this success were involvement, user-friendly design, training, transparency and partnerships. Continued commitment at all levels is still needed to fully tackle stock-outs and ensure evidence-based decisions.