Modern technologies play a key role in the transformation of the education system, including tools such as e-register, which was implemented through the CARNet platform. Through the application of information and communication technology, e-register allows teachers, students and parents easier access to school data and improves the organization of classes. This paper analyzes the perception and experiences of e-register users and explores the possibilities of further improvement of this system. There are two main components of the work: theoretical and research part. The theoretical part of the paper analyzes the context and significance of digitalization of the school system, while the research part presents the results of surveys conducted among teachers. The results show that teachers are mostly satisfied with the use of e-registers, highlighting numerous advantages such as reducing paperwork, improving the organization of school activities and data transparency. However, challenges were also identified, such as technical difficulties and the need for additional user education. Teachers gave useful suggestions for improving the e-register, including better technical support, development of new functionalities and adaptation to the specific needs of schools. The research conclusions indicate that e-register, despite certain challenges, has a positive impact on the education system. With further improvement, e-register could become a key tool in the modernization and digitalization of education which would further improve the quality of education in Croatia.