diff --git a/app/backup.py b/app/backup.py
index 7683bc3..abb544e 100644
--- a/app/backup.py
+++ b/app/backup.py
@@ -104,6 +104,8 @@ def send_command(connection: ConnectHandler, command: str) -> str:
         result = "NetmikoTimeoutException"
     except exceptions.ReadTimeout:
             result = "ReadTimeout"
+    if len(result.split("\n")) < cfg.bcp.min_string_count:
+        result = 'NotEnoughLines'
     return result
 
 
@@ -125,6 +127,9 @@ def save_mikrotik_bcp(host: str, name: str) -> None:
     elif result == "ReadTimeout":
         log.warning("Timeout read config from %r", name)
         return
+    elif result == "NotEnoughLines":
+        log.warning("Small number of lines %r", name)
+        return
     result = "\n".join(result.split("\n")[1:])
     bcp_file_name, file_folder = get_bcp_file_path(name)
     with open(bcp_file_name, "w") as f:
@@ -150,6 +155,9 @@ def save_snr_bcp(host: str, name: str) -> None:
     elif result == "ReadTimeout":
         log.warning("Timeout read config from %r", name)
         return
+    elif result == "NotEnoughLines":
+        log.warning("Small number of lines %r", name)
+        return
     bcp_file_name, file_folder = get_bcp_file_path(name)
     with open(bcp_file_name, "w") as f:
         f.write(result)
@@ -174,6 +182,9 @@ def save_cisco_sb_bcp(host: str, name: str) -> None:
     elif result == "ReadTimeout":
         log.warning("Timeout read config from %r", name)
         return
+    elif result == "NotEnoughLines":
+        log.warning("Small number of lines %r", name)
+        return
     bcp_file_name, file_folder = get_bcp_file_path(name)
     with open(bcp_file_name, "w") as f:
         f.write(result)
@@ -198,6 +209,9 @@ def save_cisco_bcp(host: str, name: str) -> None:
     elif result == "ReadTimeout":
         log.warning("Timeout read config from %r", name)
         return
+    elif result == "NotEnoughLines":
+        log.warning("Small number of lines %r", name)
+        return
     bcp_file_name, file_folder = get_bcp_file_path(name)
     with open(bcp_file_name, "w") as f:
         f.write(result)
diff --git a/app/config.py b/app/config.py
index 28e234b..8dece60 100644
--- a/app/config.py
+++ b/app/config.py
@@ -62,6 +62,7 @@ class ConfigBcp:
     in_folder: bool = config["bcp"].getboolean("in_folder")
     if in_folder:
         folder_name_pattern: str = config["bcp"].get("folder_name_pattern")
+    min_string_count: int = config["bcp"].getint("min_string_count")
 
 
 @dataclass
diff --git a/app/config/config-template.ini b/app/config/config-template.ini
index 2680231..7b3434b 100644
--- a/app/config/config-template.ini
+++ b/app/config/config-template.ini
@@ -41,7 +41,8 @@ start_at: 18:59
 in_folder: True
 # Регулярное выражение по которому будет парситься имя папки из названия девайса
 folder_name_pattern: ^(.*?)-
-
+# Если количество строк в конфиге меньше указанного значения - ошибка, изменения не записываются.
+min_string_count: 50
 
 [net_dev]
 debug: False