The author gives an overview of case law of the European Union on the issue of Article 6 of Regulation (EC) No 1896/2006 of the European Parliament and of the Council of 12 December 2006 creating a European order for payment procedure, read in conjunction with Article 17 thereof, must be interpreted as meaning that a statement of opposition to a European order for payment that does not contain any challenge to the jurisdiction of the court of the Member State of origin cannot be regarded as constituting the entering of an appearance within the meaning of Article 24 of Council Regulation (EC) No 44/2001 of 22 December 2000 on jurisdiction and the recognition and enforcement of judgments in civil and commercial matters, and the fact that the defendant has, in the statement of opposition lodged, put forward arguments relating to the substance of the case is irrelevant in that regard.