This work analyzes the two principal questions, which the European Union Court of Justice has resolved in the Judgment of 12 February 2015, Case C-396/13, Sahkoalojen Ammattiliitto. In this sense, first we focus critically our attention, on the approach that the Advocate general makes in relation to the law applicable to the assignment of claims. Second, here is described the interpretation which CJ done to the Minimum wage notion contained in the 96/71/EC Directive.