JDelivery Smartphone by Enerj is the application for mobile devices for the management of goods delivery with dematerialized DDT, taking charge by the carrier, delivery signature with geolocation, anomaly management, photo collection of damaged packages and possible check of packages. The solution involves the acquisition of document flows to be processed by the management system and, through a web application, the subdivision by carrier / round of deliveries. The carrier takes charge of the goods and does not print the paper copies of its competence. Upon delivery, the Customer performs the signature on the device of the DDT document to be returned, allowing the digital flow to be maintained. The result of the delivery is communicated to the management system through data synchronization. The application is also highly configurable to meet different business needs.