40In that regard, it must be noted that, in the absence of harmonisation of the national enforcement mechanisms, the details of their implementation are governed by the internal legal order of the Member States by virtue of the principle of procedural autonomy of those States. Nevertheless, the Court has pointed out that the means of implementation must meet the dual condition that they are no less favourable than those governing similar domestic actions (principle of equivalence) and do not make it in practice impossible or excessively difficult to exercise the rights conferred on consumers by EU law (principle of effectiveness) (judgment in Sánchez Morcillo and Abril García, C‑169/14, EU:C:2014:2099, paragraph 31 and the case-law cited).
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