diff --git a/eurostyle-server-api-requirements.md b/eurostyle-server-api-requirements.md
index 09e65ee..8c79c0b 100644
--- a/eurostyle-server-api-requirements.md
+++ b/eurostyle-server-api-requirements.md
@@ -467,26 +467,36 @@ part_type - Перечисление (Enum)
   "conclusion": "Прокладка изношена",
   "product_instances": [
     {
+      "line": 1,
       "external_key": "pi-001"
     },
     {
+      "line": 2,
       "external_key": "pi-002"
     }
   ],
   "parts": [
     {
-      "external_key": "part-001"
+      "line": 1,
+      "external_key": "part-001",
+      "count": 10
     },
     {
-      "external_key": "part-002"
+      "line": 2,
+      "external_key": "part-002",
+      "count": 10
     }
   ],
   "jobs": [
     {
-      "external_key": "job-001"
+      "line": 1,
+      "external_key": "job-001",
+      "count": 10
     },
     {
-      "external_key": "job-002"
+      "line": 2,
+      "external_key": "job-002",
+       "count": 10
     }
   ]  
 }
@@ -504,6 +514,7 @@ part_type - Перечисление (Enum)
   "master_key": "master-001",
   "parts": [
     {
+      "line": 1,
       "part_type": 1,
       "count": 100,
       "part_key": "material-1",
@@ -512,6 +523,7 @@ part_type - Перечисление (Enum)
   ],
   "jobs": [
     {
+      "line": 1,
       "code": "code-1",
       "job_key": "job-1",
       "name": "услуга 1",
@@ -520,19 +532,15 @@ part_type - Перечисление (Enum)
   ],
   "product_instances": [
     {
+      "line": 1,
       "product_instance_key": "product_instance_key_1",
       "name": "оборудование-1",
       "serial_number": "123",
       "inventory_number": "1",
       "warranty": true
-      "warranty": true
-    }
-  ],
-  "files": [
-    {
-      "path": "\\Shared\\file.txt"
     }
   ],
+  "files_path": "\\Shared\\",
   "contact_person_name": "Петров Петр",
   "number_in_client_database": "number_in_client_database_1",
   "submission_date": "2025-04-07T08:30:00Z",
@@ -559,28 +567,6 @@ part_type - Перечисление (Enum)
   "warehouse_key": "warehouse-001",
   "brand_key": "brand-001",
   "master_key": "",
-  "product_instances": [
-    {
-      "name": "оборудование-1",
-      "serial_number": "123",
-      "inventory_number": "1",
-      "warranty": true
-    }
-  ],
-  "parts": [
-    {
-      "part_type": 1,
-      "count": 100,
-      "part_name": "Деталь"
-    }
-  ],
-  "jobs": [
-    {
-      "code": "code-1",
-      "name": "услуга 1",
-      "count": 1
-    }
-  ],
   "contact_person_name": "Петров Петр",
   "number_in_client_database": "number_in_client_database_1",
   "submission_date": "2025-04-07T08:30:00Z",
@@ -592,7 +578,41 @@ part_type - Перечисление (Enum)
   "status": 1,
   "defect_key": "def-001",
   "call_reason": "Капает из фильтра",
-  "conclusion": "Прокладка изношена"
+  "conclusion": "Прокладка изношена",
+  "product_instances": [
+    {
+      "line": 1,
+      "external_key": "pi-001"
+    },
+    {
+      "line": 2,
+      "external_key": "pi-002"
+    }
+  ],
+  "parts": [
+    {
+      "line": 1,
+      "external_key": "part-001",
+      "count": 10
+    },
+    {
+      "line": 2,
+      "external_key": "part-002",
+      "count": 10
+    }
+  ],
+  "jobs": [
+    {
+      "line": 1,
+      "external_key": "job-001",
+      "count": 10
+    },
+    {
+      "line": 2,
+      "external_key": "job-002",
+      "count": 10
+    }
+  ]
 }
 ```
 
@@ -617,32 +637,10 @@ part_type - Перечисление (Enum)
 ```json
 {
   "customer_key": "cust-001",
-  "address_key": "UPDATED-addr-001",
-  "warehouse_key": "UPDATED-ware-001",
+  "address_key": "addr-001",
+  "warehouse_key": "warehouse-001",
   "brand_key": "brand-001",
   "master_key": "master-001",
-  "product_instances": [
-    {
-      "name": "оборудование-1",
-      "serial_number": "123",
-      "inventory_number": "1",
-      "warranty": true
-    }
-  ],
-  "parts": [
-    {
-      "part_type": 1,
-      "count": 100,
-      "part_name": "Деталь"
-    }
-  ],
-  "jobs": [
-    {
-      "code": "code-1",
-      "name": "услуга 1",
-      "count": 1
-    }
-  ],
   "contact_person_name": "Петров Петр",
   "number_in_client_database": "number_in_client_database_1",
   "submission_date": "2025-04-07T08:30:00Z",
@@ -654,7 +652,41 @@ part_type - Перечисление (Enum)
   "status": 1,
   "defect_key": "def-001",
   "call_reason": "Капает из фильтра",
-  "conclusion": "Прокладка изношена"
+  "conclusion": "Прокладка изношена",
+  "product_instances": [
+    {
+      "line": 1,
+      "external_key": "pi-001"
+    },
+    {
+      "line": 2,
+      "external_key": "pi-002"
+    }
+  ],
+  "parts": [
+    {
+      "line": 1,
+      "external_key": "part-001",
+      "count": 10
+    },
+    {
+      "line": 2,
+      "external_key": "part-002",
+      "count": 10
+    }
+  ],
+  "jobs": [
+    {
+      "line": 1,
+      "external_key": "job-001",
+      "count": 10
+    },
+    {
+      "line": 2,
+      "external_key": "job-002",
+      "count": 10
+    }
+  ]
 }
 ```
 
@@ -670,6 +702,7 @@ part_type - Перечисление (Enum)
   "master_key": "master-001",
   "parts": [
     {
+      "line": 1,
       "part_type": 1,
       "count": 100,
       "part_key": "material-1",
@@ -678,6 +711,7 @@ part_type - Перечисление (Enum)
   ],
   "jobs": [
     {
+      "line": 1,
       "code": "code-1",
       "job_key": "job-1",
       "name": "услуга 1",
@@ -686,6 +720,7 @@ part_type - Перечисление (Enum)
   ],
   "product_instances": [
     {
+      "line": 1,
       "product_instance_key": "product_instance_key_1",
       "name": "оборудование-1",
       "serial_number": "123",
@@ -693,11 +728,7 @@ part_type - Перечисление (Enum)
       "warranty": true
     }
   ],
-  "files": [
-    {
-      "path": "\\Shared\\file.txt"
-    }
-  ],
+  "files_path": "\\Shared\\",
   "contact_person_name": "Петров Петр",
   "number_in_client_database": "number_in_client_database_1",
   "submission_date": "2025-04-07T08:30:00Z",