Paraphrase the paragraph.
Subject to the provisions of this Convention, where in any Member State a court, or other competent authority within that Member State, makes a final decision as to amendment, supplementation, correction, or deletion, of data in the Customs Information System, the Member States undertake mutually to enforce such a decision.
If a judge or another competent authority in a MS has taken a final decision to amend, add, correct or delete data in the Customs Information System, the MS undertakes, subject to the provisions of this Convention, to execute that decision.