diff --git a/custom_components/econnect_metronet/devices.py b/custom_components/econnect_metronet/devices.py
index 4e8cb60..cab83b1 100644
--- a/custom_components/econnect_metronet/devices.py
+++ b/custom_components/econnect_metronet/devices.py
@@ -26,6 +26,7 @@
     CONF_AREAS_ARM_VACATION,
     NOTIFICATION_MESSAGE,
 )
+from .helpers import split_code
 
 _LOGGER = logging.getLogger(__name__)
 
@@ -291,7 +292,13 @@ def update(self):
 
     def arm(self, code, sectors=None):
         try:
-            with self._connection.lock(code):
+            # Detect if the user is trying to arm a system that requires a user ID
+            if not self.panel.get("login_without_user_id", True):
+                user_id, code = split_code(code)
+            else:
+                user_id = None
+
+            with self._connection.lock(code, user_id=user_id):
                 self._connection.arm(sectors=sectors)
                 self.state = STATE_ALARM_ARMED_AWAY
         except HTTPError as err:
@@ -309,7 +316,13 @@ def arm(self, code, sectors=None):
 
     def disarm(self, code, sectors=None):
         try:
-            with self._connection.lock(code):
+            # Detect if the user is trying to arm a system that requires a user ID
+            if not self.panel.get("login_without_user_id", True):
+                user_id, code = split_code(code)
+            else:
+                user_id = None
+
+            with self._connection.lock(code, user_id=user_id):
                 self._connection.disarm(sectors=sectors)
                 self.state = STATE_ALARM_DISARMED
         except HTTPError as err:
diff --git a/custom_components/econnect_metronet/helpers.py b/custom_components/econnect_metronet/helpers.py
index fc4ef2e..0b46c4f 100644
--- a/custom_components/econnect_metronet/helpers.py
+++ b/custom_components/econnect_metronet/helpers.py
@@ -1,6 +1,7 @@
 from typing import List, Tuple, Union
 
 import voluptuous as vol
+from elmo.api.exceptions import CodeError
 from homeassistant.config_entries import ConfigEntry
 from homeassistant.const import CONF_USERNAME
 from homeassistant.helpers.config_validation import multi_select
@@ -81,3 +82,30 @@ def generate_entity_id(config: ConfigEntry, name: Union[str, None] = None) -> st
     # See: https://www.home-assistant.io/faq/unique_id/#can-be-changed
     entity_name = slugify(f"{system_name}_{additional_name}")
     return f"{DOMAIN}.{DOMAIN}_{entity_name}"
+
+
+def split_code(code: str) -> Tuple[str, str]:
+    """Splits the given code into two parts: user ID and code.
+
+    The function returns a tuple containing the user ID and the code as separate strings.
+    The code is expected to be in the format <USER_ID><CODE> without spaces, with the CODE
+    part being the last 6 characters of the string.
+
+    Args:
+        code: A string representing the combined user ID and code.
+
+    Returns:
+        A tuple of two strings: (user ID, code).
+
+    Raises:
+        CodeError: If the input code is less than 7 characters long, indicating it does not
+        conform to the expected format.
+    """
+    if len(code) <= 6:
+        raise CodeError("Your code must be in the format <USER_ID><CODE> without spaces.")
+
+    user_id_part, code_part = code[:-6], code[-6:]
+    if not (user_id_part.isdigit() and code_part.isdigit()):
+        raise CodeError("Both user ID and code must be numbers.")
+
+    return user_id_part, code_part
diff --git a/custom_components/econnect_metronet/manifest.json b/custom_components/econnect_metronet/manifest.json
index b72c80b..a5124c0 100644
--- a/custom_components/econnect_metronet/manifest.json
+++ b/custom_components/econnect_metronet/manifest.json
@@ -16,7 +16,7 @@
     "elmo"
   ],
   "requirements": [
-    "econnect-python==0.11.0b0"
+    "econnect-python==0.11.0"
   ],
   "version": "2.2.1"
 }
diff --git a/pyproject.toml b/pyproject.toml
index 5adbe4e..c9b1a10 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -31,7 +31,7 @@ classifiers = [
   "Programming Language :: Python :: Implementation :: CPython",
 ]
 dependencies = [
-  "econnect-python==0.11.0b0",
+  "econnect-python==0.11.0",
   "async_timeout",
   "homeassistant",
 ]
diff --git a/tests/test_devices.py b/tests/test_devices.py
index d9da8eb..4db073f 100644
--- a/tests/test_devices.py
+++ b/tests/test_devices.py
@@ -1133,18 +1133,71 @@ def test_device_update_query_not_valid(client, mocker):
     assert device.update() is None
 
 
-def test_device_arm_success(client, mocker):
+def test_device_arm_success(alarm_device, mocker):
     """Should arm the e-connect system using the underlying client."""
-    device = AlarmDevice(client)
-    mocker.spy(device._connection, "lock")
-    mocker.spy(device._connection, "arm")
+    mocker.spy(alarm_device._connection, "lock")
+    mocker.spy(alarm_device._connection, "arm")
     # Test
-    device._connection._session_id = "test"
-    device.arm("1234", sectors=[4])
-    assert device._connection.lock.call_count == 1
-    assert device._connection.arm.call_count == 1
-    assert "1234" in device._connection.lock.call_args[0]
-    assert {"sectors": [4]} == device._connection.arm.call_args[1]
+    alarm_device.arm("1234", sectors=[4])
+    assert alarm_device._connection.lock.call_count == 1
+    assert alarm_device._connection.arm.call_count == 1
+    assert "1234" in alarm_device._connection.lock.call_args[0]
+    assert {"sectors": [4]} == alarm_device._connection.arm.call_args[1]
+
+
+def test_device_arm_success_without_panel_details(alarm_device, mocker):
+    """Should assume `userId` is not required if panel details are empty."""
+    alarm_device._inventory = {}
+    mocker.spy(alarm_device._connection, "lock")
+    mocker.spy(alarm_device._connection, "arm")
+    # Test
+    alarm_device._connection._session_id = "test"
+    alarm_device.arm("1234", sectors=[4])
+    assert alarm_device._connection.lock.call_count == 1
+    assert alarm_device._connection.arm.call_count == 1
+    assert "1234" in alarm_device._connection.lock.call_args[0]
+    assert {"sectors": [4]} == alarm_device._connection.arm.call_args[1]
+
+
+def test_device_arm_success_with_user_id(alarm_device, mocker):
+    """Should split the code if the login with `userId` is required."""
+    alarm_device._inventory[0]["login_without_user_id"] = False
+    mocker.spy(alarm_device._connection, "lock")
+    mocker.spy(alarm_device._connection, "arm")
+    # Test
+    alarm_device._connection._session_id = "test"
+    alarm_device.arm("001123456", sectors=[4])
+    assert alarm_device._connection.lock.call_count == 1
+    assert alarm_device._connection.arm.call_count == 1
+    assert "123456" in alarm_device._connection.lock.call_args[0]
+    assert {"user_id": "001"} == alarm_device._connection.lock.call_args[1]
+    assert {"sectors": [4]} == alarm_device._connection.arm.call_args[1]
+
+
+def test_device_arm_success_user_id_not_required(alarm_device, mocker):
+    """Should not split the code if the login with `userId` is not required."""
+    alarm_device._inventory[0]["login_without_user_id"] = True
+    mocker.spy(alarm_device._connection, "lock")
+    mocker.spy(alarm_device._connection, "arm")
+    # Test
+    alarm_device._connection._session_id = "test"
+    alarm_device.arm("123456", sectors=[4])
+    assert alarm_device._connection.lock.call_count == 1
+    assert alarm_device._connection.arm.call_count == 1
+    assert "123456" in alarm_device._connection.lock.call_args[0]
+    assert {"user_id": None} == alarm_device._connection.lock.call_args[1]
+    assert {"sectors": [4]} == alarm_device._connection.arm.call_args[1]
+
+
+def test_device_arm_code_error_with_user_id(alarm_device, mocker):
+    """Should raise an error if the code can't be split in `userId` and `code`."""
+    alarm_device._inventory[0]["login_without_user_id"] = False
+    mocker.spy(alarm_device._connection, "lock")
+    mocker.spy(alarm_device._connection, "arm")
+    # Test
+    alarm_device._connection._session_id = "test"
+    with pytest.raises(CodeError):
+        alarm_device.arm("1234", sectors=[4])
 
 
 def test_device_arm_error(client, mocker):
@@ -1189,19 +1242,73 @@ def test_device_arm_code_error(client, mocker):
     assert device._connection.arm.call_count == 0
 
 
-def test_device_disarm_success(client, mocker):
+def test_device_disarm_success(alarm_device, mocker):
     """Should disarm the e-connect system using the underlying client."""
-    device = AlarmDevice(client)
-    mocker.spy(device._connection, "lock")
-    mocker.spy(device._connection, "disarm")
+    mocker.spy(alarm_device._connection, "lock")
+    mocker.spy(alarm_device._connection, "disarm")
     # Test
-    device._connection._session_id = "test"
-    device.disarm("1234", sectors=[4])
+    alarm_device._connection._session_id = "test"
+    alarm_device.disarm("1234", sectors=[4])
 
-    assert device._connection.lock.call_count == 1
-    assert device._connection.disarm.call_count == 1
-    assert "1234" in device._connection.lock.call_args[0]
-    assert {"sectors": [4]} == device._connection.disarm.call_args[1]
+    assert alarm_device._connection.lock.call_count == 1
+    assert alarm_device._connection.disarm.call_count == 1
+    assert "1234" in alarm_device._connection.lock.call_args[0]
+    assert {"sectors": [4]} == alarm_device._connection.disarm.call_args[1]
+
+
+def test_device_disarm_success_without_panel_details(alarm_device, mocker):
+    """Should assume `userId` is not required if panel details are empty."""
+    alarm_device._inventory = {}
+    mocker.spy(alarm_device._connection, "lock")
+    mocker.spy(alarm_device._connection, "disarm")
+    # Test
+    alarm_device._connection._session_id = "test"
+    alarm_device.disarm("1234", sectors=[4])
+    assert alarm_device._connection.lock.call_count == 1
+    assert alarm_device._connection.disarm.call_count == 1
+    assert "1234" in alarm_device._connection.lock.call_args[0]
+    assert {"sectors": [4]} == alarm_device._connection.disarm.call_args[1]
+
+
+def test_device_disarm_success_user_id_not_required(alarm_device, mocker):
+    """Should not split the code if the login with `userId` is not required."""
+    alarm_device._inventory[0]["login_without_user_id"] = True
+    mocker.spy(alarm_device._connection, "lock")
+    mocker.spy(alarm_device._connection, "disarm")
+    # Test
+    alarm_device._connection._session_id = "test"
+    alarm_device.disarm("123456", sectors=[4])
+    assert alarm_device._connection.lock.call_count == 1
+    assert alarm_device._connection.disarm.call_count == 1
+    assert "123456" in alarm_device._connection.lock.call_args[0]
+    assert {"user_id": None} == alarm_device._connection.lock.call_args[1]
+    assert {"sectors": [4]} == alarm_device._connection.disarm.call_args[1]
+
+
+def test_device_disarm_success_with_user_id(alarm_device, mocker):
+    """Should split the code if the login with `userId` is required."""
+    alarm_device._inventory[0]["login_without_user_id"] = False
+    mocker.spy(alarm_device._connection, "lock")
+    mocker.spy(alarm_device._connection, "disarm")
+    # Test
+    alarm_device._connection._session_id = "test"
+    alarm_device.disarm("001123456", sectors=[4])
+    assert alarm_device._connection.lock.call_count == 1
+    assert alarm_device._connection.disarm.call_count == 1
+    assert "123456" in alarm_device._connection.lock.call_args[0]
+    assert {"user_id": "001"} == alarm_device._connection.lock.call_args[1]
+    assert {"sectors": [4]} == alarm_device._connection.disarm.call_args[1]
+
+
+def test_device_disarm_code_error_with_user_id(alarm_device, mocker):
+    """Should raise an error if the code can't be split in `userId` and `code`."""
+    alarm_device._inventory[0]["login_without_user_id"] = False
+    mocker.spy(alarm_device._connection, "lock")
+    mocker.spy(alarm_device._connection, "disarm")
+    # Test
+    alarm_device._connection._session_id = "test"
+    with pytest.raises(CodeError):
+        alarm_device.disarm("1234", sectors=[4])
 
 
 def test_device_disarm_error(client, mocker):
diff --git a/tests/test_helpers.py b/tests/test_helpers.py
index 58b84a1..830b38f 100644
--- a/tests/test_helpers.py
+++ b/tests/test_helpers.py
@@ -1,6 +1,8 @@
+import pytest
+from elmo.api.exceptions import CodeError
 from homeassistant.core import valid_entity_id
 
-from custom_components.econnect_metronet.helpers import generate_entity_id
+from custom_components.econnect_metronet.helpers import generate_entity_id, split_code
 
 
 def test_generate_entity_name_empty(config_entry):
@@ -47,3 +49,40 @@ def test_generate_entity_name_with_spaces(config_entry):
     entity_id = generate_entity_id(config_entry)
     assert entity_id == "econnect_metronet.econnect_metronet_home_assistant"
     assert valid_entity_id(entity_id)
+
+
+def test_split_code_with_valid_digits():
+    # Should split the numeric user ID and code correctly
+    code = "123456789012"
+    assert split_code(code) == ("123456", "789012")
+
+
+def test_split_code_with_exact_six_chars_raises_error():
+    # Should raise CodeError for code with less than 7 characters
+    code = "123456"
+    with pytest.raises(CodeError) as exc_info:
+        split_code(code)
+    assert "format <USER_ID><CODE> without spaces" in str(exc_info.value)
+
+
+def test_split_code_with_alphanumeric_user_id_raises_error():
+    # Should raise CodeError for alphanumeric user ID
+    code = "USER123456"
+    with pytest.raises(CodeError) as exc_info:
+        split_code(code)
+    assert "user ID and code must be numbers" in str(exc_info.value)
+
+
+def test_split_code_with_special_characters_raises_error():
+    # Should raise CodeError for code with special characters
+    code = "12345@678901"
+    with pytest.raises(CodeError) as exc_info:
+        split_code(code)
+    assert "user ID and code must be numbers" in str(exc_info.value)
+
+
+def test_split_code_with_empty_string_raises_error():
+    # Should raise CodeError for empty string
+    with pytest.raises(CodeError) as exc_info:
+        split_code("")
+    assert "format <USER_ID><CODE> without spaces" in str(exc_info.value)