diff --git a/PyroFetes/DTO/DeliveryNote/Request/CreateDeliveryNoteDto.cs b/PyroFetes/DTO/DeliveryNote/Request/CreateDeliveryNoteDto.cs
index 5e0990d..f862856 100644
--- a/PyroFetes/DTO/DeliveryNote/Request/CreateDeliveryNoteDto.cs
+++ b/PyroFetes/DTO/DeliveryNote/Request/CreateDeliveryNoteDto.cs
@@ -8,5 +8,4 @@ public class CreateDeliveryNoteDto
     public DateOnly RealDeliveryDate { get; set; }
     
     public int DelivererId { get; set; }
-    
 }
\ No newline at end of file
diff --git a/PyroFetes/DTO/DeliveryNote/Request/PatchDeliveryNoteRealDeliveryDateDto.cs b/PyroFetes/DTO/DeliveryNote/Request/PatchDeliveryNoteRealDeliveryDateDto.cs
index 486df5e..eb2182e 100644
--- a/PyroFetes/DTO/DeliveryNote/Request/PatchDeliveryNoteRealDeliveryDateDto.cs
+++ b/PyroFetes/DTO/DeliveryNote/Request/PatchDeliveryNoteRealDeliveryDateDto.cs
@@ -4,5 +4,4 @@ public class PatchDeliveryNoteRealDeliveryDateDto
 {
     public int Id { get; set; }
     public DateOnly RealDeliveryDate { get; set; }
-
 }
\ No newline at end of file
diff --git a/PyroFetes/DTO/DeliveryNote/Request/UpdateDeliveryNoteDto.cs b/PyroFetes/DTO/DeliveryNote/Request/UpdateDeliveryNoteDto.cs
index 1ab7cbf..b4746ff 100644
--- a/PyroFetes/DTO/DeliveryNote/Request/UpdateDeliveryNoteDto.cs
+++ b/PyroFetes/DTO/DeliveryNote/Request/UpdateDeliveryNoteDto.cs
@@ -9,5 +9,4 @@ public class UpdateDeliveryNoteDto
     public DateOnly? RealDeliveryDate { get; set; }
     
     public int DelivererId { get; set; }
-    
 }
\ No newline at end of file
diff --git a/PyroFetes/DTO/DeliveryNote/Response/GetDeliveryNoteDto.cs b/PyroFetes/DTO/DeliveryNote/Response/GetDeliveryNoteDto.cs
index 6b4ffc7..3683ed3 100644
--- a/PyroFetes/DTO/DeliveryNote/Response/GetDeliveryNoteDto.cs
+++ b/PyroFetes/DTO/DeliveryNote/Response/GetDeliveryNoteDto.cs
@@ -13,5 +13,5 @@ public class GetDeliveryNoteDto
     public int DelivererId { get; set; }
     public string? DelivererTransporter { get; set; }
     
-    public List<GetProductDeliveryDto>  Products { get; set; }
+    public List<GetProductDeliveryDto>?  Products { get; set; }
 }
\ No newline at end of file
diff --git a/PyroFetes/DTO/PurchaseOrder/Request/PatchPurchaseOrderPurchaseConditionsDto.cs b/PyroFetes/DTO/PurchaseOrder/Request/PatchPurchaseOrderPurchaseConditionsDto.cs
new file mode 100644
index 0000000..77586b0
--- /dev/null
+++ b/PyroFetes/DTO/PurchaseOrder/Request/PatchPurchaseOrderPurchaseConditionsDto.cs
@@ -0,0 +1,7 @@
+namespace PyroFetes.DTO.PurchaseOrder.Request;
+
+public class PatchPurchaseOrderPurchaseConditionsDto
+{
+    public int Id { get; set; }
+    public string? PurchaseConditions { get; set; }
+}
\ No newline at end of file
diff --git a/PyroFetes/DTO/PurchaseOrder/Response/GetPurchaseOrderDto.cs b/PyroFetes/DTO/PurchaseOrder/Response/GetPurchaseOrderDto.cs
new file mode 100644
index 0000000..38a012f
--- /dev/null
+++ b/PyroFetes/DTO/PurchaseOrder/Response/GetPurchaseOrderDto.cs
@@ -0,0 +1,7 @@
+namespace PyroFetes.DTO.PurchaseOrder.Response;
+
+public class GetPurchaseOrderDto
+{
+    public int Id { get; set; }
+    public string? PurchaseConditions { get; set; }
+}
\ No newline at end of file
diff --git a/PyroFetes/DTO/User/Request/PatchUserPasswordDto.cs b/PyroFetes/DTO/User/Request/PatchUserPasswordDto.cs
new file mode 100644
index 0000000..bfa2051
--- /dev/null
+++ b/PyroFetes/DTO/User/Request/PatchUserPasswordDto.cs
@@ -0,0 +1,7 @@
+namespace PyroFetes.DTO.User.Request;
+
+public class PatchUserPasswordDto
+{
+    public int Id { get; set; }
+    public string? Password { get; set; }
+}
\ No newline at end of file
diff --git a/PyroFetes/Endpoints/PurchaseProduct/DeletePurchaseProductEndpoint.cs b/PyroFetes/Endpoints/PurchaseProduct/DeletePurchaseProductEndpoint.cs
index 7af1030..5a02644 100644
--- a/PyroFetes/Endpoints/PurchaseProduct/DeletePurchaseProductEndpoint.cs
+++ b/PyroFetes/Endpoints/PurchaseProduct/DeletePurchaseProductEndpoint.cs
@@ -12,7 +12,7 @@ public class DeletePurchaseOrderEndpoint(PyroFetesDbContext database) : Endpoint
 {
     public override void Configure()
     {
-        Delete("/api/purchaseOrders/{Id:int}");
+        Delete("/api/purchaseOrders/{Id}", x => new {x.Id});
         AllowAnonymous();
     }
 
diff --git a/PyroFetes/Endpoints/PurchaseProduct/GetAllPurchasesProductsEndpoint.cs b/PyroFetes/Endpoints/PurchaseProduct/GetAllPurchasesProductsEndpoint.cs
deleted file mode 100644
index 54517ff..0000000
--- a/PyroFetes/Endpoints/PurchaseProduct/GetAllPurchasesProductsEndpoint.cs
+++ /dev/null
@@ -1,6 +0,0 @@
-namespace PyroFetes.Endpoints.PurchaseProduct;
-
-public class GetAllPurchasesProductsEndpoint
-{
-    
-}
\ No newline at end of file
diff --git a/PyroFetes/Endpoints/PurchaseProduct/GetPurchaseProductEndpoint.cs b/PyroFetes/Endpoints/PurchaseProduct/GetPurchaseProductEndpoint.cs
deleted file mode 100644
index 9527e4c..0000000
--- a/PyroFetes/Endpoints/PurchaseProduct/GetPurchaseProductEndpoint.cs
+++ /dev/null
@@ -1,6 +0,0 @@
-namespace PyroFetes.Endpoints.PurchaseProduct;
-
-public class GetPurchaseProductEndpoint
-{
-    
-}
\ No newline at end of file
diff --git a/PyroFetes/Endpoints/PurchaseProduct/PatchPurchaseProductQuantityEndpoint.cs b/PyroFetes/Endpoints/PurchaseProduct/PatchPurchaseProductQuantityEndpoint.cs
index 7772a82..dd53757 100644
--- a/PyroFetes/Endpoints/PurchaseProduct/PatchPurchaseProductQuantityEndpoint.cs
+++ b/PyroFetes/Endpoints/PurchaseProduct/PatchPurchaseProductQuantityEndpoint.cs
@@ -1,6 +1,36 @@
+using FastEndpoints;
+using Microsoft.EntityFrameworkCore;
+using PyroFetes.DTO.PurchaseProduct.Request;
+using PyroFetes.DTO.PurchaseProduct.Response;
+
 namespace PyroFetes.Endpoints.PurchaseProduct;
 
-public class PatchPurchaseProductQuantityEndpoint
+public class PatchPurchaseProductQuantityEndpoint(PyroFetesDbContext database) : Endpoint<PatchPurchaseProductQuantityDto, GetPurchaseProductDto>
 {
-    
+    public override void Configure()
+    {
+        Patch("/api/purchaseOrders/{ProductId}/{PurchaseOrderId}/Quantity", x => new { x.ProductId, x.PurchaseOrderId });
+        AllowAnonymous();
+    }
+
+    public override async Task HandleAsync(PatchPurchaseProductQuantityDto req, CancellationToken ct)
+    {
+        var purchaseProduct = await database.PurchaseProducts.SingleOrDefaultAsync(po => po.ProductId == req.ProductId && po.PurchaseOrderId == req.PurchaseOrderId, ct);
+        if (purchaseProduct == null)
+        {
+            await Send.NotFoundAsync(ct);
+            return;
+        }
+        
+        purchaseProduct.Quantity = req.Quantity;
+        await database.SaveChangesAsync(ct);
+
+        GetPurchaseProductDto responseDto = new()
+        {
+            ProductId = purchaseProduct.ProductId,
+            PurchaseOrderId = purchaseProduct.PurchaseOrderId,
+            Quantity = purchaseProduct.Quantity
+        };
+        await Send.OkAsync(responseDto, ct);
+    }
 }
\ No newline at end of file