Since the end of the 19th century, the theory of cause has been the subject of intense criticism, not always on the same level, but with the constant aim of obtaining its outright abandonment in common contract law. As a result, in an effort to put an end to this lively controversy, and motivated by the manifest instability and imprecision of this notion, the legislator in comparative law, notably French law, took the decision to abandon the theory of cause following the reform of contract law in 2016. Ivorian law of obligations, having inherited the 1804 Napoleonic Civil Code from colonial times, is not left behind. Today, questions are being asked about the usefulness of cause in contracts.