The conformity of goods is a central concept underpinning the CISG and is based, broadly speaking, on breach of contract. However, questions arise whether the concept of conformity under the CISG has found its place in Ukrainian sales law, especially due to the lack of comparative research on this topic. This article, therefore, seeks to answer key questions and close gaps in legal research. In particular, the article highlights the differences between the CISG and the Ukrainian sales law and indicates where the latter requires improvements.