Judgment of the Court (Grand Chamber) of 18 January 2022.#Thelen Technopark Berlin GmbH v MN.#Request for a preliminary ruling from the Bundesgerichtshof.#Reference for a preliminary ruling – Freedom to provide services – Article 49 TFEU – Directive 2006/123/EC – Article 15 – Architects’ and engineers’ fees – Fixed minimum tariffs – Direct effect – Judgment establishing a failure to fulfil obligations delivered during proceedings before a national court or tribunal.#Case C-261/20.