Registration for this IAU Symposium will happen as part of the registration for the General Assembly and will start in September 2023.
See registration details at: https://astronomy2024.org/
Abstract submission has opened on 30 November 2023 and will remain open until 1 March 2024 at, https://astronomy2024.org/abstracts-grants/.
Participants can apply for financial support for their participation in the IAU General Assembly and by extension this symposium. The support includes the Africa Grant, specifically aimed at Africa-based astronomers. Please see more details at the same link as for abstract submission (https://astronomy2024.org/abstracts-grants/).