diff --git a/HardwareShop/HardwareShopRestApi/Controllers/BuildController.cs b/HardwareShop/HardwareShopRestApi/Controllers/BuildController.cs
index b53bbee..f64240b 100644
--- a/HardwareShop/HardwareShopRestApi/Controllers/BuildController.cs
+++ b/HardwareShop/HardwareShopRestApi/Controllers/BuildController.cs
@@ -124,7 +124,15 @@ namespace HardwareShopRestApi.Controllers
                 var purchase = _purchaseLogic.ReadElement(new() { Id = purchaseId });
 				if (purchase.PurchaseStatus == PurchaseStatus.Выдан) return false;
 				purchase.Sum = purchase.Sum + build.Price * count;
-				build.BuildPurchases.Add(purchaseId, (purchase as IPurchaseModel, count));
+				if (build.BuildPurchases.ContainsKey(purchaseId))
+				{
+					
+					build.BuildPurchases[purchaseId] = (build.BuildPurchases[purchaseId].Item1, build.BuildPurchases[purchaseId].Item2 + count);
+				}
+				else
+				{
+					build.BuildPurchases.Add(purchaseId, (purchase as IPurchaseModel, count));
+				}							
 				Update(new BuildBindingModel
 				{
 					Id = buildId,
@@ -178,6 +186,47 @@ namespace HardwareShopRestApi.Controllers
 			}
 		}
 
+		[HttpGet]
+		public bool UpdateLinkPurchase(int updateBuildId, int updatePurchaseId, int count)
+		{
+			try
+			{
+				var build = GetBuild(updateBuildId);//APIClient.GetRequest<BuildViewModel>($"api/build/getBuild?buildId={buildId}");
+				var purchase = _purchaseLogic.ReadElement(new() { Id = updatePurchaseId });
+				if (purchase.PurchaseStatus == PurchaseStatus.Выдан) return false;
+				purchase.Sum = purchase.Sum + build.Price * count;
+				if (build.BuildPurchases.ContainsKey(updatePurchaseId))
+				{
+					if (count > build.BuildPurchases[updatePurchaseId].Item2)
+					{
+						purchase.Sum = purchase.Sum + (count - build.BuildPurchases[updatePurchaseId].Item2) * build.Price;					
+					}
+					else
+					{
+						purchase.Sum = purchase.Sum - (build.BuildPurchases[updatePurchaseId].Item2 - count) * build.Price;
+					}
+					build.BuildPurchases[updatePurchaseId] = (build.BuildPurchases[updatePurchaseId].Item1, count);
+				}
+				else
+				{
+					return false;
+				}
+				Update(new BuildBindingModel
+				{
+					Id = updateBuildId,
+					Price = build.Price,
+					BuildName = build.BuildName,
+					BuildPurchases = build.BuildPurchases
+				});
+				return true;
+			}
+			catch (Exception ex)
+			{
+				_logger.LogError(ex, "Ошибка обновления данных");
+				throw;
+			}
+		}
+
 		[HttpPost]
         public void DeleteBuild(BuildBindingModel model)
         {
diff --git a/HardwareShop/HardwareShopWorkerApp/Controllers/HomeController.cs b/HardwareShop/HardwareShopWorkerApp/Controllers/HomeController.cs
index 7f14abb..6c9b86f 100644
--- a/HardwareShop/HardwareShopWorkerApp/Controllers/HomeController.cs
+++ b/HardwareShop/HardwareShopWorkerApp/Controllers/HomeController.cs
@@ -167,21 +167,7 @@ namespace HardwareShopWorkerApp.Controllers
 			{
 				throw new Exception($"Количество сборок в покупке не может быть ниже или равен 0");
 			}
-			//APIClient.PostRequest("api/build/linkPurchase", new { buildId, purchaseId, count });
 			APIClient.GetRequest<bool>($"api/build/linkPurchase?buildId={buildId}&purchaseId={purchaseId}&count={count}");
-
-			//var build = APIClient.GetRequest<BuildViewModel>($"api/build/getBuild?buildId={buildId}");
-			//var purchase = APIClient.GetRequest<PurchaseViewModel>($"api/purchase/getpurchase?purchaseId={purchaseId}");
-			//purchase.Sum = purchase.Sum + build.Price * count;
-			//build.BuildPurchases.Add(purchaseId, (purchase as IPurchaseModel, count));
-			//APIClient.PostRequest("api/build/update", new BuildBindingModel
-			//{
-			//	Id = buildId,
-			//	Price = build.Price,
-			//	BuildName = build.BuildName,
-			//	BuildPurchases = build.BuildPurchases
-			//});
-			//APIClient.PostRequest("api/purchase/update", purchase);
 			Response.Redirect($"LinkPurchase?buildId={buildId}");
 		}