In addition to the General Assembly resolution 76/307 and decision 77/568, there are a number of other documents which provide further information for the preparations for the Summit of the Future (SOTF), such as the series of Policy Briefs prepared by the UN Secretary-General:
Policy Brief 1: To Think and Act for Future Generations
Policy Brief 2: Strengthening the International Response to Complex Global Shocks – An Emergency Platform
Policy Brief 3: Meaningful Youth Engagement in Policymaking and Decision-making Processes
Policy Brief 4: Valuing What Counts: Framework to Progress Beyond Gross Domestic Progress Beyond Gross Domestic Product
Policy Brief 5: A Global Digital Compact – an Open, Free and Secure Digital Future for All
Policy Brief 6: Information Integrity on Digital Platforms
Policy Brief 7: Reforms to the International Financial Architecture
Policy Brief 8: For All Humanity – the Future of Outer Space Governance
Policy Brief 9: A New Agenda for Peace
Policy Brief 10: Transforming Education
Policy Brief 11: UN 2.0 Forward-thinking cultures and cutting-edge for better United Nations system impact
There is a blog/fact sheet on the 2024 Summit of the Future on the Global Policy Watch