Judgment of the Court (First Chamber) of 9 October 2025.#Finanzamt Hamburg-Altona v XYRALITY GmbH.#Reference for a preliminary ruling – Taxation – Common system of value added tax (VAT) – Directive 2006/112/EC – Article 28 – Taking part in a supply of services – Articles 44 and 45 – Place of supply of services – Article 203 – VAT entered on an invoice – Electronically supplied services – App store – ‘In-app’ purchases.#Case C-101/24.