Order of the General Court (Fifth Chamber) of 9 September 2021.#GABO:mi Gesellschaft für Ablauforganisation:milliarium mbH & Co. KG v European Commission.#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) – Grant agreements – Set-off of claims – Identification of the defendant – Failure to comply with procedural requirements – Article 76(d) of the Rules of Procedure – Manifest inadmissibility.#Case T-881/19.