The Industrial Revolution 4.0 is a new paradigm in an industry that combines automation technology with cyber technology. Indonesia is a maritime country that requires the acceleration of information from one region to another. The existence of the digitalization era is the beginning of the fast and dynamic transfer of information that helps many parties in sending or receiving information. This also makes business actors make business adjustments and follow the trends of the digitalization era. The purpose of this study was to determine the increase in sales and customer satisfaction from the implementation of Digital Solution services. The system dynamic method is a methodology for understanding a complex problem with the aim of getting a deep understanding of the workings of a system. The results of the dynamic system simulation with a timeline for 24 months and a scenario of a 50% increase in intervention, an increase in sales for existing customers of 45,600 Liters/month, and an increase in annual sales volume of 1,519,490 Liters so that Digital Solution has a positive impact on increasing sales and increasing satisfaction. Customers 1.1% every month because it improves after-sales service working time efficiency.