The subject of the paper refers to the analysis of the exercise of the will of the contracting parties regarding the jurisdiction of the court in the law of the Hague Conference and Bosnia and Herzegovina. The exercise of the will of the contracting parties may be limited by the institute of lis pendens, which makes it impossible to conduct two proceedings between the same parties simultaneously for the same claim based on the same facts, giving priority to the first one, regardless of agreed-upon international jurisdiction. By agreeing on the jurisdiction, the contracting parties decide which court will resolve their dispute, which is extremely important for them. Based on the analysis of the Hague Convention on Choice of Court Agreements, it is concluded that preference is given to proceedings before the chosen court, with certain exceptions when the agreement of the parties will not apply. The law of Bosnia and Herzegovina applies the rules of lis pendens which may prevent the application of the agreement of the parties.