diff --git a/Collaborateur_Epa_Back/espacecollab.backend.api/Controllers/CollaborateursController.cs b/Collaborateur_Epa_Back/espacecollab.backend.api/Controllers/CollaborateursController.cs
index fe0a556..adf4a21 100644
--- a/Collaborateur_Epa_Back/espacecollab.backend.api/Controllers/CollaborateursController.cs
+++ b/Collaborateur_Epa_Back/espacecollab.backend.api/Controllers/CollaborateursController.cs
@@ -71,16 +71,6 @@ public class CollaborateursController : BaseController<CollaborateurApiDto>
         return Ok(collaborateurs);
     }
 
-    [HttpGet("referrer/{referrerId:int:min(1)}")]
-    public ActionResult<IEnumerable<CollaborateurApiDto>> GetCollaborateursByReferrer(uint referrerId)
-    {
-        IEnumerable<CollaborateurApiDto> collaborateurs = CollaborateursServices.GetCollaborateursByReferrer(referrerId);
-        if (!collaborateurs.Any())
-            return NotFound();
-
-        return Ok(collaborateurs);
-    }
-
     [HttpGet("apsidemail/{apsideMail:minlength(1):regex(^\\S.*)}")]
     public ActionResult<CollaborateurApiDto> GetCollaborateurByApsideMail(string apsideMail)
     {
diff --git a/Collaborateur_Epa_Back/espacecollab.backend.api/Controllers/ReferencementsController.cs b/Collaborateur_Epa_Back/espacecollab.backend.api/Controllers/ReferencementsController.cs
new file mode 100644
index 0000000..4b2fb25
--- /dev/null
+++ b/Collaborateur_Epa_Back/espacecollab.backend.api/Controllers/ReferencementsController.cs
@@ -0,0 +1,13 @@
+using espacecollab.backend.appservices;
+using espacecollab.backend.appservices.dtos;
+using Microsoft.AspNetCore.Mvc;
+
+namespace espacecollab.backend.api.Controllers;
+
+public class ReferencementsController : BaseController<ReferencementApiDto>
+{ 
+    public ReferencementsController(ReferencementService referencementServices) : base(referencementServices)
+    {
+    }
+
+}
\ No newline at end of file
diff --git a/Collaborateur_Epa_Back/espacecollab.backend.api/Register.cs b/Collaborateur_Epa_Back/espacecollab.backend.api/Register.cs
index 569bc08..ba59d90 100644
--- a/Collaborateur_Epa_Back/espacecollab.backend.api/Register.cs
+++ b/Collaborateur_Epa_Back/espacecollab.backend.api/Register.cs
@@ -17,6 +17,7 @@ internal static class Register
         services.AddScoped<BusinessUnitService>();
         services.AddScoped<FonctionService>();
         services.AddScoped<PeriodeEssaiService>();
+        services.AddScoped<ReferencementService>();
 
         if (contextOptions.LoadFake)
         {
@@ -35,6 +36,7 @@ internal static class Register
             services.AddScoped<IFonctionRepository, FonctionSqlRepository>();
             services.AddScoped<ITechnologieRepository, TechnologieSqlRepository>();
             services.AddScoped<IPeriodeEssaiRepository, PeriodeEssaiSqlRepository>();
+            services.AddScoped<IReferencementRepository, ReferencementSqlRepository>();
         }
     }
 }
\ No newline at end of file
diff --git a/Collaborateur_Epa_Back/espacecollab.backend.api/appsettings.json b/Collaborateur_Epa_Back/espacecollab.backend.api/appsettings.json
index 64f8b67..b8e3730 100644
--- a/Collaborateur_Epa_Back/espacecollab.backend.api/appsettings.json
+++ b/Collaborateur_Epa_Back/espacecollab.backend.api/appsettings.json
@@ -8,8 +8,8 @@
   "AllowedHosts": "*",
   "Sql": {
     "LoadFake": false,
-    "ConnectionString": "server=database;user=root;password=root;database=collaborateur_epa" //préprod
+    //"ConnectionString": "server=database;user=root;password=root;database=collaborateur_epa" //préprod
     //"ConnectionString": "server=db;user=root;password=root;database=collaborateur_epa"     //docker-compose
-    //"ConnectionString": "server=localhost;user=root;password=root;database=collaborateur_epa" //local
+    "ConnectionString": "server=localhost;user=root;password=root;database=collaborateur_epa" //local
   }
 }
diff --git a/Collaborateur_Epa_Back/espacecollab.backend.appservices.dtos/CollaborateurApiDto.cs b/Collaborateur_Epa_Back/espacecollab.backend.appservices.dtos/CollaborateurApiDto.cs
index 731c835..93d6082 100644
--- a/Collaborateur_Epa_Back/espacecollab.backend.appservices.dtos/CollaborateurApiDto.cs
+++ b/Collaborateur_Epa_Back/espacecollab.backend.appservices.dtos/CollaborateurApiDto.cs
@@ -4,7 +4,7 @@ using espacecollab.backend.appservices.dtos.Values;
 namespace espacecollab.backend.appservices.dtos;
 
 public record CollaborateurApiDto(uint Id, string Name, string FirstName, DateTime BirthDate, EnumGenreApi Gender, EnumStatutApi Status, int ChildrenNumber, string Address, 
-    string Telephone, string PersonalMail, string ApsideMail, DateTime? ResignationDate, int ReferrerId, int BusinessUnitId) : IGenericIdApiDto
+    string Telephone, string PersonalMail, string ApsideMail, DateTime? ResignationDate, int BusinessUnitId) : IGenericIdApiDto
 {
     public uint Id { get; set; } = Id;
 }
\ No newline at end of file
diff --git a/Collaborateur_Epa_Back/espacecollab.backend.appservices.dtos/Mappers/CollaborateurMapper.cs b/Collaborateur_Epa_Back/espacecollab.backend.appservices.dtos/Mappers/CollaborateurMapper.cs
index 8672269..75ae43b 100644
--- a/Collaborateur_Epa_Back/espacecollab.backend.appservices.dtos/Mappers/CollaborateurMapper.cs
+++ b/Collaborateur_Epa_Back/espacecollab.backend.appservices.dtos/Mappers/CollaborateurMapper.cs
@@ -9,7 +9,7 @@ public static class CollaborateurMapper
         return new CollaborateurApiDto((uint)collaborateurSql.Id, collaborateurSql.Name, collaborateurSql.FirstName,
             collaborateurSql.BirthDate, collaborateurSql.Gender.ToEnumGenreApi(), collaborateurSql.Status.ToEnumStatutApi(), collaborateurSql.ChildrenNumber,
             collaborateurSql.Address, collaborateurSql.Telephone, collaborateurSql.PersonalMail, collaborateurSql.ApsideMail,
-            collaborateurSql.ResignationDate, collaborateurSql.ReferrerId, collaborateurSql.BusinessUnitId);
+            collaborateurSql.ResignationDate, collaborateurSql.BusinessUnitId);
     }
 
     public static CollaborateurSqlDto ToSql(this CollaborateurApiDto collaborateurApi)
@@ -17,6 +17,6 @@ public static class CollaborateurMapper
         return new CollaborateurSqlDto((int)collaborateurApi.Id, collaborateurApi.Name, collaborateurApi.FirstName,
             collaborateurApi.BirthDate, collaborateurApi.Gender.ToEnumGenreSql(), collaborateurApi.Status.ToEnumStatutSql(), collaborateurApi.ChildrenNumber,
             collaborateurApi.Address, collaborateurApi.Telephone, collaborateurApi.PersonalMail, collaborateurApi.ApsideMail,
-            collaborateurApi.ResignationDate, collaborateurApi.ReferrerId, collaborateurApi.BusinessUnitId);
+            collaborateurApi.ResignationDate, collaborateurApi.BusinessUnitId);
     }
 }
\ No newline at end of file
diff --git a/Collaborateur_Epa_Back/espacecollab.backend.appservices.dtos/Mappers/ReferencementMapper.cs b/Collaborateur_Epa_Back/espacecollab.backend.appservices.dtos/Mappers/ReferencementMapper.cs
new file mode 100644
index 0000000..8d5c6b6
--- /dev/null
+++ b/Collaborateur_Epa_Back/espacecollab.backend.appservices.dtos/Mappers/ReferencementMapper.cs
@@ -0,0 +1,15 @@
+using espacecollab.backend.infrastructure.sql.dtos;
+
+namespace espacecollab.backend.appservices.dtos.Mappers;
+
+public static class ReferencementMapper
+{
+    public static ReferencementApiDto ToApi(this ReferencementSqlDto referencementSqlDto)
+    {
+        return new ReferencementApiDto((uint)referencementSqlDto.Id, referencementSqlDto.StartingDate,referencementSqlDto.EndingDate,referencementSqlDto.ReferredId, referencementSqlDto.ReferrerId);
+    }
+    public static ReferencementSqlDto ToSql(this ReferencementApiDto referencementApiDto)
+    {
+        return new ReferencementSqlDto((int)referencementApiDto.Id, referencementApiDto.StartingDate, referencementApiDto.EndingDate, referencementApiDto.ReferredId, referencementApiDto.ReferrerId);
+    }
+}
\ No newline at end of file
diff --git a/Collaborateur_Epa_Back/espacecollab.backend.appservices.dtos/ReferencementApiDto.cs b/Collaborateur_Epa_Back/espacecollab.backend.appservices.dtos/ReferencementApiDto.cs
new file mode 100644
index 0000000..51c135c
--- /dev/null
+++ b/Collaborateur_Epa_Back/espacecollab.backend.appservices.dtos/ReferencementApiDto.cs
@@ -0,0 +1,12 @@
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+using System.Diagnostics.CodeAnalysis;
+using espacecollab.backend.appservices.dtos.Interfaces;
+using espacecollab.backend.infrastructure.sql.dtos.Interfaces;
+
+namespace espacecollab.backend.appservices.dtos;
+
+public record ReferencementApiDto(uint Id, DateTime StartingDate, DateTime? EndingDate, int ReferredId, int ReferrerId) : IGenericIdApiDto
+{
+    public uint Id { get; set; } = Id;
+}
\ No newline at end of file
diff --git a/Collaborateur_Epa_Back/espacecollab.backend.appservices/CollaborateursService.cs b/Collaborateur_Epa_Back/espacecollab.backend.appservices/CollaborateursService.cs
index 4bacdd1..ef28beb 100644
--- a/Collaborateur_Epa_Back/espacecollab.backend.appservices/CollaborateursService.cs
+++ b/Collaborateur_Epa_Back/espacecollab.backend.appservices/CollaborateursService.cs
@@ -57,11 +57,6 @@ public class CollaborateursService : GenericsServices<CollaborateurSqlDto, Colla
         return CollaborateurRepository.GetCollaborateursByBusinessUnit((int)businessUnitId).Select(collaborateurSql => collaborateurSql.ToApi());
     }
 
-    public IEnumerable<CollaborateurApiDto> GetCollaborateursByReferrer(uint referrerId)
-    {
-        return CollaborateurRepository.GetCollaborateursByReferrer((int)referrerId).Select(collaborateurSql => collaborateurSql.ToApi());
-    }
-
     public CollaborateurApiDto? GetCollaborateurByApsideMail(string apsideMail)
     {
         if (string.IsNullOrEmpty(apsideMail))
diff --git a/Collaborateur_Epa_Back/espacecollab.backend.appservices/ReferencementService.cs b/Collaborateur_Epa_Back/espacecollab.backend.appservices/ReferencementService.cs
new file mode 100644
index 0000000..bd69ad0
--- /dev/null
+++ b/Collaborateur_Epa_Back/espacecollab.backend.appservices/ReferencementService.cs
@@ -0,0 +1,18 @@
+using espacecollab.backend.appservices.dtos;
+using espacecollab.backend.appservices.dtos.Mappers;
+using espacecollab.backend.infrastructure.interfaces;
+using espacecollab.backend.infrastructure.sql.dtos;
+
+namespace espacecollab.backend.appservices;
+
+public class ReferencementService : GenericsServices<ReferencementSqlDto, ReferencementApiDto>
+{
+    private IReferencementRepository ReferencementRepository { get; }
+
+    public ReferencementService(IReferencementRepository referencementRepository)
+            : base(referencementRepository, ReferencementMapper.ToApi, ReferencementMapper.ToSql)
+    {
+        ReferencementRepository = referencementRepository;    
+    }
+
+}
\ No newline at end of file
diff --git a/Collaborateur_Epa_Back/espacecollab.backend.infrastructure.fake/FakeCollaborateurRepository.cs b/Collaborateur_Epa_Back/espacecollab.backend.infrastructure.fake/FakeCollaborateurRepository.cs
index f1a956c..8ccde8e 100644
--- a/Collaborateur_Epa_Back/espacecollab.backend.infrastructure.fake/FakeCollaborateurRepository.cs
+++ b/Collaborateur_Epa_Back/espacecollab.backend.infrastructure.fake/FakeCollaborateurRepository.cs
@@ -10,12 +10,12 @@ public class FakeCollaborateurRepository : GenericFakeRepository<CollaborateurSq
     {
         Context = new List<CollaborateurSqlDto>
         {
-            new(1, "Dupont", "Jean", new DateTime(1980, 12, 10),
-                EnumGenreSql.MASCULIN, EnumStatutSql.NONCADRE, 0, "1 rue du Louvre, 63000, Clermont-Ferrand", "0660258644",
-                "jean.dupont@gmail.com", "jean.dupont@apside-groupe.com", new DateTime(2023, 12, 17), 2, 1),
-            new(2, "Michel", "Laura", new DateTime(1985, 08, 12),
-                EnumGenreSql.FEMININ, EnumStatutSql.NONCADRE, 0, "5 rue du Louvre, 63000, Clermont-Ferrand", "0660258644",
-                "laura.michel@gmail.com", "laura.michel@apside-groupe.com", new DateTime(2023, 12, 17), 1, 1)
+            //new(1, "Dupont", "Jean", new DateTime(1980, 12, 10),
+            //    EnumGenreSql.MASCULIN, EnumStatutSql.NONCADRE, 0, "1 rue du Louvre, 63000, Clermont-Ferrand", "0660258644",
+            //    "jean.dupont@gmail.com", "jean.dupont@apside-groupe.com", new DateTime(2023, 12, 17), 2, 1),
+            //new(2, "Michel", "Laura", new DateTime(1985, 08, 12),
+            //    EnumGenreSql.FEMININ, EnumStatutSql.NONCADRE, 0, "5 rue du Louvre, 63000, Clermont-Ferrand", "0660258644",
+            //    "laura.michel@gmail.com", "laura.michel@apside-groupe.com", new DateTime(2023, 12, 17), 1, 1)
         };
     }
 
@@ -26,11 +26,6 @@ public class FakeCollaborateurRepository : GenericFakeRepository<CollaborateurSq
         return Context.Where(entity => entity.BusinessUnitId == businessUnitId).ToList();
     }
 
-    public IList<CollaborateurSqlDto> GetCollaborateursByReferrer(int referrerId)
-    {
-        return Context.Where(entity => entity.ReferrerId == referrerId).ToList();
-    }
-
     public CollaborateurSqlDto GetCollaborateurByApsideMail(string apsideMail)
     {
         return Context.First(entity => entity.ApsideMail == apsideMail);
diff --git a/Collaborateur_Epa_Back/espacecollab.backend.infrastructure.interfaces/ICollaborateurRepository.cs b/Collaborateur_Epa_Back/espacecollab.backend.infrastructure.interfaces/ICollaborateurRepository.cs
index 35f8866..d110bf1 100644
--- a/Collaborateur_Epa_Back/espacecollab.backend.infrastructure.interfaces/ICollaborateurRepository.cs
+++ b/Collaborateur_Epa_Back/espacecollab.backend.infrastructure.interfaces/ICollaborateurRepository.cs
@@ -6,5 +6,4 @@ public interface ICollaborateurRepository : IGenericRepository<CollaborateurSqlD
 {
     CollaborateurSqlDto? GetCollaborateurByApsideMail(string apsideMail);
     IList<CollaborateurSqlDto> GetCollaborateursByBusinessUnit(int businessUnitId);
-    IList<CollaborateurSqlDto> GetCollaborateursByReferrer(int referrerId);
 }
\ No newline at end of file
diff --git a/Collaborateur_Epa_Back/espacecollab.backend.infrastructure.interfaces/IReferencementRepository.cs b/Collaborateur_Epa_Back/espacecollab.backend.infrastructure.interfaces/IReferencementRepository.cs
index c12b65f..65c2b3a 100644
--- a/Collaborateur_Epa_Back/espacecollab.backend.infrastructure.interfaces/IReferencementRepository.cs
+++ b/Collaborateur_Epa_Back/espacecollab.backend.infrastructure.interfaces/IReferencementRepository.cs
@@ -4,6 +4,4 @@ namespace espacecollab.backend.infrastructure.interfaces;
 
 public interface IReferencementRepository : IGenericRepository<ReferencementSqlDto>
 {
-    IList<CollaborateurSqlDto>? GetReferrersByCollaborateurId(int collaborateurId);
-    IList<CollaborateurSqlDto>? GetReferrersByCollaborateurApsideMail(string apsideMail);
 }
\ No newline at end of file
diff --git a/Collaborateur_Epa_Back/espacecollab.backend.infrastructure.sql.dtos/CollaborateurSqlDto.cs b/Collaborateur_Epa_Back/espacecollab.backend.infrastructure.sql.dtos/CollaborateurSqlDto.cs
index 3874a61..1116d74 100644
--- a/Collaborateur_Epa_Back/espacecollab.backend.infrastructure.sql.dtos/CollaborateurSqlDto.cs
+++ b/Collaborateur_Epa_Back/espacecollab.backend.infrastructure.sql.dtos/CollaborateurSqlDto.cs
@@ -22,7 +22,6 @@ public class CollaborateurSqlDto : IGenericIdSqlDto
     public string PersonalMail { get; set; }
     public string ApsideMail { get; set; }
     public DateTime? ResignationDate { get; set; }
-    public int ReferrerId { get; set; }
     public int BusinessUnitId { get; set; }
 
     [ExcludeFromCodeCoverage]
@@ -36,7 +35,7 @@ public class CollaborateurSqlDto : IGenericIdSqlDto
         ApsideMail = string.Empty;
     }
 
-    public CollaborateurSqlDto(int id, string name, string firstName, DateTime birthDate, EnumGenreSql gender, EnumStatutSql status, int childrenNumber, string address, string telephone, string personalMail, string apsideMail, DateTime? resignationDate, int referrerId, int businessUnitId)
+    public CollaborateurSqlDto(int id, string name, string firstName, DateTime birthDate, EnumGenreSql gender, EnumStatutSql status, int childrenNumber, string address, string telephone, string personalMail, string apsideMail, DateTime? resignationDate, int businessUnitId)
     {
         Id = id;
         Name = name;
@@ -50,7 +49,6 @@ public class CollaborateurSqlDto : IGenericIdSqlDto
         PersonalMail = personalMail;
         ApsideMail = apsideMail;
         ResignationDate = resignationDate;
-        ReferrerId = referrerId;
         BusinessUnitId = businessUnitId;
     }
 }
\ No newline at end of file
diff --git a/Collaborateur_Epa_Back/espacecollab.backend.infrastructure.sql.dtos/ReferencementSqlDto.cs b/Collaborateur_Epa_Back/espacecollab.backend.infrastructure.sql.dtos/ReferencementSqlDto.cs
index 11dd489..c81054c 100644
--- a/Collaborateur_Epa_Back/espacecollab.backend.infrastructure.sql.dtos/ReferencementSqlDto.cs
+++ b/Collaborateur_Epa_Back/espacecollab.backend.infrastructure.sql.dtos/ReferencementSqlDto.cs
@@ -11,7 +11,7 @@ public class ReferencementSqlDto : IGenericIdSqlDto
     [Key]
     public int Id { get; set; }
     public DateTime StartingDate { get; set; }
-    public DateTime EndingDate { get; set; }
+    public DateTime? EndingDate { get; set; }
     public int ReferredId { get; set; }
     public int ReferrerId { get; set; }
 
@@ -20,7 +20,7 @@ public class ReferencementSqlDto : IGenericIdSqlDto
     {
     }
 
-    public ReferencementSqlDto(int id, DateTime startingDate, DateTime endingDate, int referredId, int referrerId)
+    public ReferencementSqlDto(int id, DateTime startingDate, DateTime? endingDate, int referredId, int referrerId)
     {
         Id = id;
         StartingDate = startingDate;
diff --git a/Collaborateur_Epa_Back/espacecollab.backend.infrastructure.sql/MainDbContext.cs b/Collaborateur_Epa_Back/espacecollab.backend.infrastructure.sql/MainDbContext.cs
index 59b5eea..f3dd2b8 100644
--- a/Collaborateur_Epa_Back/espacecollab.backend.infrastructure.sql/MainDbContext.cs
+++ b/Collaborateur_Epa_Back/espacecollab.backend.infrastructure.sql/MainDbContext.cs
@@ -32,6 +32,7 @@ public class MainDbContext : DbContext
         modelBuilder.Entity<TechnologieSqlDto>().Property(p => p.Id).UseMySqlIdentityColumn();
 
         modelBuilder.Entity<PeriodeEssaiSqlDto>().Property(p => p.Id).UseMySqlIdentityColumn();
+
         modelBuilder
             .Entity<PeriodeEssaiSqlDto>()
             .Property(e => e.Issue)
@@ -46,5 +47,7 @@ public class MainDbContext : DbContext
            .Entity<CollaborateurSqlDto>()
            .Property(e => e.Status)
            .HasConversion<string>();
+
+        modelBuilder.Entity<ReferencementSqlDto>().Property(p => p.Id).UseMySqlIdentityColumn();
     }
 }
\ No newline at end of file
diff --git a/Collaborateur_Epa_Back/espacecollab.backend.infrastructure.sql/Repository/CollaborateurSqlRepository.cs b/Collaborateur_Epa_Back/espacecollab.backend.infrastructure.sql/Repository/CollaborateurSqlRepository.cs
index 7abfa46..90c71a2 100644
--- a/Collaborateur_Epa_Back/espacecollab.backend.infrastructure.sql/Repository/CollaborateurSqlRepository.cs
+++ b/Collaborateur_Epa_Back/espacecollab.backend.infrastructure.sql/Repository/CollaborateurSqlRepository.cs
@@ -13,9 +13,6 @@ public class CollaborateurSqlRepository : GenericSqlRepository<CollaborateurSqlD
     public IList<CollaborateurSqlDto> GetCollaborateursByBusinessUnit(int businessUnitId)
         => Context.Set<CollaborateurSqlDto>().Where(collaborateur => collaborateur.BusinessUnitId == businessUnitId).ToList();
 
-    public IList<CollaborateurSqlDto> GetCollaborateursByReferrer(int referrerId)
-        => Context.Set<CollaborateurSqlDto>().Where(collaborateur => collaborateur.ReferrerId == referrerId).ToList();
-
     public CollaborateurSqlDto? GetCollaborateurByApsideMail(string apsideMail)
         => Context?.Set<CollaborateurSqlDto>().SingleOrDefault(collaborateur => collaborateur.ApsideMail == apsideMail);
 }
\ No newline at end of file
diff --git a/Collaborateur_Epa_Back/espacecollab.backend.infrastructure.sql/Repository/ReferencementSqlRepository.cs b/Collaborateur_Epa_Back/espacecollab.backend.infrastructure.sql/Repository/ReferencementSqlRepository.cs
new file mode 100644
index 0000000..7753be4
--- /dev/null
+++ b/Collaborateur_Epa_Back/espacecollab.backend.infrastructure.sql/Repository/ReferencementSqlRepository.cs
@@ -0,0 +1,11 @@
+using espacecollab.backend.infrastructure.interfaces;
+using espacecollab.backend.infrastructure.sql.dtos;
+
+namespace espacecollab.backend.infrastructure.sql.Repository;
+
+public class ReferencementSqlRepository: GenericSqlRepository<ReferencementSqlDto>, IReferencementRepository
+{
+    public ReferencementSqlRepository(MainDbContext context) : base(context)
+    {
+    }
+}
\ No newline at end of file