The Data Management Plan – 2 is the second in a series of three planned reports that outlines the evolving data practices and current status of the BREADCRUMB project. Building on the foundational strategies set in the initial plan, this update focuses on the implementation progress of the FAIR principles, the operationalization of data workflows, and adjustments made in response to practical and ethical challenges encountered during the project's execution.This report reflects the active phase of data management, where theoretical frameworks are translated into daily practice. Key developments include the refinement of metadata standards, enhancement of data accessibility mechanisms, and the establishment of repositories for both open and restricted data. As the project progresses, an emphasis is placed on maintaining interoperability and reusability through structured documentation and adherence to evolving standards.This deliverable provides an updated overview, newly involved data stewards, and timelines for data preservation efforts. Lessons learned from the initial implementation phase have informed a more agile and responsive approach to managing human and technical resources.From a security standpoint, the report highlights the deployment of secure storage infrastructures, access control mechanisms, and ongoing risk assessments to ensure the integrity and confidentiality of sensitive datasets. These efforts align with best practices and are continuously reviewed to meet legal and institutional requirements.Ethical oversight remains a cornerstone of the BREADCRUMB project. In this phase, particular attention is given to data handling procedures involving personal or sensitive information, with reinforced measures for informed consent and data anonymization being introduced.In summary, Data Management Plan – 2 illustrates the project’s continued commitment to FAIR data stewardship, responsible resource management, and ethical compliance. This mid-term review not only captures the progress made but also identifies areas for further refinement, ensuring that the BREADCRUMB project remains aligned with its overarching goal of producing impactful, transparent, and ethically sound research outcomes.