Judgment of the Court (First Chamber) of 9 January 2025.#Österreichische Datenschutzbehörde v F R and Bundesministerin für Justiz.#Reference for a preliminary ruling – Protection of natural persons with regard to the processing of personal data – Regulation (EU) 2016/679 – Article 57(1)(f) and Article 57(4) – Tasks of the supervisory authority – Concepts of a ‘request’ and ‘excessive requests’ – Charging of a reasonable fee or refusal to act on requests in the event of manifestly unfounded or excessive requests – Criteria which may guide the supervisory authority in making its choice – Article 77(1) – Concept of a ‘complaint’.#Case C-416/23.