Judgment of the Court (Seventh Chamber) of 16 March 2023.#GABO:mi Gesellschaft für Ablauforganisation:milliarium mbH & Co. KG v European Commission.#Appeal – Arbitration clause – Sixth and seventh framework programmes for research, technological development and demonstration activities (2002-2006 and 2007-2013) – ‘Horizon 2020’ Framework Programme for Research and Innovation (2014-2020) – Eligible costs – Set-off of claims – Claim for reimbursement – Admissibility of the application – Article 76(d) of the Rules of Procedure of the General Court of the European Union – Requirement of clarity and precision.#Case C-696/21 P.