The assignment of claims is of indisputable commercial significance. With the ever-growing globalization this is not only true for national but also for cross-border transactions. However, the current situation leaves parties with great legal uncertainty when it comes to cross-border assignments. Currently, the Rome I-Regulation provides no satisfactory provision. Particularly, there is no provision regulating the most important aspect regarding third-party effects. Therefore, it is highly welcome that the Commission’s Capital Markets Union Action Plan has created new momentum in this regard. A new attempt is made to establish a conflict of laws rule relating to third-party effects. This Article reviews the current status of the relevant provision in the Rome I-Regulation and the possible adjustments. It is submitted that of the mainly promoted views for a conflict of laws rule regarding third-party effects (law of the underlying claim, law of the assignment and law of the seat of the assignor), a mixed rule would aggravate the legal uncertainty and that instead, the law of the underlying claim should govern third-party effects.

中文翻译：

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债权转让的第三方影响：委员会《资本市场联盟行动计划》和委员会2018年提案的新动力

索赔的转让具有无可争议的商业意义。随着全球化的不断发展，这不仅适用于国家，而且适用于跨境交易。但是，当前的情况使当事方在跨境转让方面具有很大的法律不确定性。目前，《罗马一条例》没有提供令人满意的规定。特别是，没有条款规定与第三方影响有关的最重要方面。因此，委员会的《资本市场联盟行动计划》在这方面创造了新的势头，这是非常受欢迎的。尝试建立与第三方影响有关的法律冲突规则。本条回顾了《罗马一号条例》中有关规定的现状以及可能的调整。