diff --git a/API_SQLuedo/API/Program.cs b/API_SQLuedo/API/Program.cs
index 98766d0..286d6a2 100644
--- a/API_SQLuedo/API/Program.cs
+++ b/API_SQLuedo/API/Program.cs
@@ -28,8 +28,8 @@ builder.Services.AddScoped<IInquiryService<InquiryDTO>, InquiryDataServiceApi>()
 builder.Services.AddScoped<IParagraphService<ParagraphEntity>, ParagraphDataService>();
 builder.Services.AddScoped<IParagraphService<ParagraphDTO>, ParagraphDataServiceApi>();
 
-builder.Services.AddScoped<ISuccessService<SuccessEntity>, DbDataManager.Service.SuccessDataService>();
-builder.Services.AddScoped<ISuccessService<SuccessDTO>, Shared.SuccessDataService>();
+builder.Services.AddScoped<ISuccessService<SuccessEntity>, SuccessDataService>();
+builder.Services.AddScoped<ISuccessService<SuccessDTO>, SuccessDataServiceApi>();
 
 builder.Services.AddScoped<ILessonService<LessonEntity>, LessonDataService>();
 builder.Services.AddScoped<ILessonService<LessonDTO>, LessonDataServiceApi>();
diff --git a/API_SQLuedo/API/Service/SuccessDataServiceAPI.cs b/API_SQLuedo/API/Service/SuccessDataServiceAPI.cs
index 7433a91..af403c5 100644
--- a/API_SQLuedo/API/Service/SuccessDataServiceAPI.cs
+++ b/API_SQLuedo/API/Service/SuccessDataServiceAPI.cs
@@ -1,26 +1,28 @@
-using Entities;
+using Dto;
+using Entities;
 using Model.OrderCriteria;
 using Shared;
+using Shared.Mapper;
 
 namespace API.Service;
 
-public class SuccessDataServiceApi(ISuccessService<SuccessEntity> sucessService) : ISuccessService<SuccessEntity>
+public class SuccessDataServiceApi(ISuccessService<SuccessEntity> sucessService) : ISuccessService<SuccessDTO>
 {
-    public IEnumerable<SuccessEntity> GetSuccesses(int page, int number, SuccessOrderCriteria orderCriteria)
+    public IEnumerable<SuccessDTO> GetSuccesses(int page, int number, SuccessOrderCriteria orderCriteria)
     {
         var successesEntities = sucessService.GetSuccesses(page, number, orderCriteria);
-        return successesEntities.Select(e => e).ToList();
+        return successesEntities.Select(e => e.FromEntityToDTO()).ToList();
     }
 
-    public SuccessEntity GetSuccessByUserId(int id) => sucessService.GetSuccessByUserId(id);
+    public SuccessDTO GetSuccessByUserId(int id) => sucessService.GetSuccessByUserId(id).FromEntityToDTO();
 
-    public SuccessEntity GetSuccessByInquiryId(int id) => sucessService.GetSuccessByInquiryId(id);
+    public SuccessDTO GetSuccessByInquiryId(int id) => sucessService.GetSuccessByInquiryId(id).FromEntityToDTO();
 
     public bool DeleteSuccess(int id) => sucessService.DeleteSuccess(id);
 
-    public SuccessEntity UpdateSuccess(int id, SuccessEntity success) =>
-        sucessService.UpdateSuccess(id, success);
+    public SuccessDTO UpdateSuccess(int id, SuccessDTO success) =>
+        sucessService.UpdateSuccess(id, success.FromDTOToEntity()).FromEntityToDTO();
 
-    public SuccessEntity CreateSuccess(int userId, int inquiryId, bool isFinished) =>
-        sucessService.CreateSuccess(userId, inquiryId, isFinished);
+    public SuccessDTO CreateSuccess(int userId, int inquiryId, bool isFinished) =>
+        sucessService.CreateSuccess(userId, inquiryId, isFinished).FromEntityToDTO();
 }
\ No newline at end of file
diff --git a/API_SQLuedo/DbDataManager/Service/SuccessDataService.cs b/API_SQLuedo/DbDataManager/Service/SuccessDataService.cs
index 4a079fa..22e3b2e 100644
--- a/API_SQLuedo/DbDataManager/Service/SuccessDataService.cs
+++ b/API_SQLuedo/DbDataManager/Service/SuccessDataService.cs
@@ -16,43 +16,61 @@ public class SuccessDataService : ISuccessService<SuccessEntity>
         context.Database.EnsureCreated();
     }
 
-    public SuccessEntity GetSuccessByUserId(int id)
+    public IEnumerable<SuccessEntity> GetSuccesses(int page, int number, SuccessOrderCriteria orderCriteria)
     {
-        var successEntity = DbContext.Successes.FirstOrDefault(u => u.UserId == id);
-        if (successEntity == null)
+        IQueryable<SuccessEntity> query = DbContext.Successes.Skip((page - 1) * number).Take(number);
+        switch (orderCriteria)
         {
-            throw new ArgumentException("Impossible de trouver le succès avec l'user id", nameof(id));
+            case SuccessOrderCriteria.None:
+                break;
+            case SuccessOrderCriteria.ByUserId:
+                query = query.OrderBy(s => s.UserId);
+                break;
+            case SuccessOrderCriteria.ByInquiryId:
+                query = query.OrderBy(s => s.InquiryId);
+                break;
+            case SuccessOrderCriteria.ByIsFinished:
+                query = query.OrderBy(s => s.IsFinished);
+                break;
+            default:
+                break;
         }
 
-        return successEntity;
+        var successes = query.ToList();
+        return successes;
     }
 
-    public SuccessEntity GetSuccessByInquiryId(int id)
+    public SuccessEntity GetSuccessByUserId(int id)
     {
-        var successEntity = DbContext.Successes.FirstOrDefault(u => u.InquiryId == id);
-        if (successEntity == null)
+        var userEntity = DbContext.Successes.FirstOrDefault(u => u.UserId == id);
+        if (userEntity == null)
         {
-            throw new ArgumentException("Impossible de trouver le succès avec l'inquiry id", nameof(id));
+            throw new ArgumentException("Impossible de trouver le succès", nameof(id));
         }
 
-        return successEntity;
+        return userEntity;
     }
 
-    public IEnumerable<SuccessEntity> GetSuccesses(int page, int number, SuccessOrderCriteria orderCriteria)
+    public SuccessEntity GetSuccessByInquiryId(int id)
     {
-        return DbContext.Successes.Skip((page - 1) * number).Take(number).ToList()
-            .Select(u => u);
+        var userEntity = DbContext.Successes.FirstOrDefault(u => u.InquiryId == id);
+        if (userEntity == null)
+        {
+            throw new ArgumentException("Impossible de trouver le succès", nameof(id));
+        }
+
+        return userEntity;
     }
 
     public bool DeleteSuccess(int id)
     {
-        var userEntity = DbContext.Successes.FirstOrDefault(u => u.UserId == id);
-        if (userEntity == null)
+        var successEntity = DbContext.Successes.FirstOrDefault(u => u.UserId == id);
+        if (successEntity == null)
         {
             return false;
         }
 
-        DbContext.Successes.Remove(userEntity);
+        DbContext.Successes.Remove(successEntity);
         DbContext.SaveChangesAsync();
         return true;
     }
@@ -62,14 +80,12 @@ public class SuccessDataService : ISuccessService<SuccessEntity>
         var updatingSuccess = DbContext.Successes.FirstOrDefault(u => u.UserId == id);
         if (updatingSuccess == null)
         {
-            throw new ArgumentException("Impossible de trouver le succès avec l'user id", nameof(id));
+            throw new ArgumentException("Impossible de trouver le succès", nameof(id));
         }
 
         updatingSuccess.UserId = success.UserId;
         updatingSuccess.InquiryId = success.InquiryId;
         updatingSuccess.IsFinished = success.IsFinished;
-        // Permet d'indiquer en Db que l'entité a été modifiée.
-        DbContext.Entry(updatingSuccess).State = EntityState.Modified;
         DbContext.SaveChangesAsync();
         return updatingSuccess;
     }
diff --git a/API_SQLuedo/TestConsoleAPI/Program.cs b/API_SQLuedo/TestConsoleAPI/Program.cs
index 6921e72..9243568 100644
--- a/API_SQLuedo/TestConsoleAPI/Program.cs
+++ b/API_SQLuedo/TestConsoleAPI/Program.cs
@@ -12,7 +12,7 @@ using Microsoft.Extensions.Logging;
 using Model.OrderCriteria;
 using Service_LessonDataService = DbDataManager.Service.LessonDataService;
 using Service_ParagraphDataService = DbDataManager.Service.ParagraphDataService;
-using SuccessDataService = Shared.SuccessDataService;
+using Service_SuccessDataService = DbDataManager.Service.SuccessDataService;
 using UserDataService = Shared.UserDataService;
 
 var connection = new SqliteConnection("DataSource=:memory:");
@@ -36,7 +36,7 @@ using (var context = new UserDbContext(options))
     var paragraphController = new ParagraphsController(new ParagraphDataServiceApi(new Service_ParagraphDataService(context)), paragraphLogger);
     var lessonController =
         new LessonsController(new LessonDataServiceApi(new Service_LessonDataService(context)), lessonLogger);
-    var successController = new SuccessesController(new SuccessDataService(context), successLogger);
+    var successController = new SuccessesController(new SuccessDataServiceApi(new Service_SuccessDataService(context)), successLogger);
 
     void PrintUsers()
     {