###### Abstract
Multimodal freight companies face challenges such as ensuring timely data exchange between stakeholders in different modes of transport and resolving potential disruptions; achieving visibility in the supply chain from the shipper to the consignee, including cargo transshipment terminals; and increasing the automation of management processes in various cargo transportation situations. Overcoming these multifaceted challenges requires a strategic approach that considers the interconnectedness of various factors, includes technological solutions, and enables closer cooperation between stakeholders in the multimodal freight transport ecosystem. This study examines multimodal transport management to facilitate the interoperability of road, rail, and water transport services. The description of the conceptual structure of data transmission processes between cargo transportation objects is proposed including the interaction with each other and with other information systems (ISs) as a layered structure where each layer reflects different and closely related functions. This conceptual structure is needed for the construction of the e-service system to manage multimodal transportation of cargo. Multimodal freight transport is associated with greener and more sustainable logistics as the shift to rail and sea transport reduces the negative impact of pollution on the environment and changes of freight transport loads from highways. Scientific studies pay attention to the search for individual solutions, the lack of a multi-complex approach, and the creation of appropriate integrated management solutions dedicated to improving the management of provided services. The relevance of the research is based on the implementation of the goals of the European Green Course and the intellectualization of transport management. In summary, it can be stated that scientific studies focus on the individual analysis of each of the modes of transport, thus delving deeper into its subtleties. However, in order to respond to the principles of green logistics and promote the attractiveness of multimodal transport, there is a lack of scientific research that analyzes ensuring the interoperability of the multimodal transport process. Therefore, in this article, we will further analyze and model data transmission in multimodal transport, which will allow all participants in the transportation process to ensure uninterrupted, faster, and smoother process interaction. This study can significantly increase the competitive advantage of companies operating in Lithuania, providing multimodal cargo transportation services in international supply chains when a sustainability-oriented approach is used. In particular, sustainability should perhaps be understood as simplifying the process by using less paper documentation and more sustainable multimodal transportation. The paper consists of eight sections. Section 1 focuses on the introduction to the topic. Section 2 analyses related studies. Section 3 presents a holistic approach to configuring a multimodal transportation e-service system. Section 4 describes infrastructure requirements for the provision of e-services. Section 5 focuses on the design of route execution procedures by road process flow diagrams. Section 6 introduces the application of contextual data for e-service provision of multimodal freight transportation. Section 7 includes a discussion and discussion of the results. Finally, the paper ends with conclusions and capabilities of future work.