This essay examines the feasibility of using the UNIDROIT Principles of International Commercial Contracts to fill gaps and ambiguities in the Convention on the International Sale of Goods (CISG), which arose from compromises during multilateral negotiations. After outlining the distinct purposes and utilities of the CISG and the UNIDROIT Principles, the essay compares their similarities and differences to assess the suitability of the Principles as a gap-filling tool. It provides a legal justification for such use, identifies specific areas within the CISG that can be effectively supplemented by the Principles, and analyzes judicial and arbitral approaches to this practice. The essay concludes by determining the most appropriate method for employing the UNIDROIT Principles to enhance the uniform application of the CISG.
