This good practice is distinguished by being an initiative that responds to a serious problem such as the disappearance of people in Mexico. Its process has led to moving from the physical version (paper) to the digital platform, quickly adapting to the windows of opportunity that the Covid-19 pandemic brought us, thereby consolidating the principles of innovation, accessibility, institutional collaboration, transversality, replicability and universality, since any municipality, authority or civil society organization can access and make use of it.