diff --git a/src/main/java/com/rte_france/antares/datamanager_back/service/impl/StudyServiceImpl.java b/src/main/java/com/rte_france/antares/datamanager_back/service/impl/StudyServiceImpl.java
index 717c69e..e7dce91 100644
--- a/src/main/java/com/rte_france/antares/datamanager_back/service/impl/StudyServiceImpl.java
+++ b/src/main/java/com/rte_france/antares/datamanager_back/service/impl/StudyServiceImpl.java
@@ -22,6 +22,7 @@
 import org.springframework.data.domain.Pageable;
 import org.springframework.data.jpa.domain.Specification;
 import org.springframework.stereotype.Service;
+import org.springframework.util.Assert;
 import org.springframework.util.CollectionUtils;
 
 import java.time.LocalDateTime;
@@ -90,7 +91,11 @@ public void deleteStudyById(Integer id) {
 
     @Override
     public StudyDTO createStudy(StudyDTO studyDTO) {
-        String studyName = studyDTO.getName() + "-" + studyDTO.getHorizon() + "_REF";
+        Assert.notNull(studyDTO.getName(), "Study name must be provided.");
+        Assert.notNull(studyDTO.getProject(), "Project name must be provided.");
+        Assert.notNull(studyDTO.getHorizon(), "Horizon year must be provided.");
+
+        String studyName = studyDTO.getName() + "-" + (Integer.parseInt(studyDTO.getHorizon()) + 1) + "_REF";
         studyDTO.setName(studyName);
         if (studyDTO.getProject() == null || studyDTO.getProject().isEmpty()) {
             throw new BadRequestException("Project name must be provided.");
diff --git a/src/test/java/com/rte_france/antares/datamanager_back/service/StudyServiceImplTest.java b/src/test/java/com/rte_france/antares/datamanager_back/service/StudyServiceImplTest.java
index 2029a92..821bafe 100644
--- a/src/test/java/com/rte_france/antares/datamanager_back/service/StudyServiceImplTest.java
+++ b/src/test/java/com/rte_france/antares/datamanager_back/service/StudyServiceImplTest.java
@@ -191,9 +191,9 @@ void createStudyUsesExistingProjectWhenProjectExists() {
 
     @Test
     void createStudyThrowsBadRequestWhenNoProjectNameProvided() {
-        StudyDTO studyDTO = StudyDTO.builder().name("Study 1").createdBy("User 1").build();
+        StudyDTO studyDTO = StudyDTO.builder().name("Study 1").createdBy("User 1").horizon("2021").build();
 
-        BadRequestException exception = assertThrows(BadRequestException.class, () -> {
+        IllegalArgumentException exception = assertThrows(IllegalArgumentException.class, () -> {
             studyServiceImpl.createStudy(studyDTO);
         });