Scientific End Report for Commissioned Services Project: DATAREX (2023-DATAREX)Project Title: Data Management for Research in ELIXIR (DATAREX)Duration: 24 months (2024-01-01 to 2025-12-31) The ELIXIR DATAREX project addressed key challenges in Research Data Management (RDM) within ELIXIR, including unclear data steward roles, fragmented RDM resources, lack of organizational frameworks for expertise exchange, and incomplete sustainable RDM training structures. Its objectives focused on empowering RDM professionals by coordinating the RDM ecosystem, facilitating knowledge exchange, enhancing RDM training, and improving data brokering services. Main activities included monthly community meetings, managing digital resources, organizing five face-to-face events, developing community frameworks and onboarding documents, maintaining an overview of ELIXIR RDM services and best practices, coordinating content creation and training material curation, and collecting requirements for data brokering systems. The project delivered a sustainable foundation to strengthen RDM practices across ELIXIR, fostering collaboration, knowledge sharing, and capacity building among RDM professionals and stakeholders.