OPUS Deliverable D7.3 – Final Dissemination, Communication and Exploitation Report has been prepared to provide a detailed account of activities carried out within the project. It is intended both for the funding authorities and for other research organisations that may wish to use this document as a reference or practical example of dissemination, communication, and exploitation practices within their own projects. The purpose of this report is to document the actions undertaken in accordance with the Dissemination and Communication Plan and the Exploitation Plan, serving as a record and a tool to support the effective use and impact of the OPUS project and its outcomes. This deliverable presents an overview of the measures implemented to inform, engage, and raise awareness of the project, its objectives, funding source, and results. Over the course of the implementation period, from 1 September 2022 to 30 August 2025 (M1–M36), the OPUS project consortium engaged with a broad spectrum of stakeholders, both within the project and across the wider Open Science community.