diff --git a/OWNd/message/scenario.py b/OWNd/message/scenario.py
index 4c1f0aa..4f8242e 100644
--- a/OWNd/message/scenario.py
+++ b/OWNd/message/scenario.py
@@ -13,7 +13,41 @@ def __init__(self, data: str) -> None:
 
         self._scenario = self._what
         self._control_panel = self._where
-        self._human_readable_log = f"Scenario {self._scenario} from control panel {self._control_panel} has been launched."  # pylint: disable=line-too-long
+        self._programming_scenario: int | None = None
+        self._event: str | None = None
+        # WHAT 40-46 are scenario-module programming states, not scenarios
+        # (libqtdevices scenario_device.cpp:27-35, 93-156; mhs1 bt_luci
+        # accepts *0*40#N*W##, 41#N, 42, 42#N, 43, 44 and emits 40#N..46#N).
+        _programming = {
+            40: "programming started",
+            41: "programming stopped",
+            42: "deleted",
+            43: "locked",
+            44: "unlocked",
+            45: "unavailable",
+            46: "memory full",
+        }
+        if self._what is None:
+            # Status request (*#0*W##, *#0##): no scenario and no event, as
+            # OWNAuxEvent does for a bare *#9##.
+            self._scenario = None
+        elif self._what in _programming:
+            self._event = _programming[self._what]
+            self._scenario = None
+            # The grammar only admits digits in a WHAT parameter, so int()
+            # cannot fail here.
+            self._programming_scenario = (
+                int(self._what_param[0]) if self._what_param else None
+            )
+            _target = (
+                f"scenario {self._programming_scenario}"
+                if self._programming_scenario is not None
+                else "all scenarios"
+            )
+            self._human_readable_log = f"Scenario module {self._control_panel}: {_target} {self._event}."  # pylint: disable=line-too-long
+        else:
+            self._event = "launched"
+            self._human_readable_log = f"Scenario {self._scenario} from control panel {self._control_panel} has been launched."  # pylint: disable=line-too-long
 
     @property
     def scenario(self) -> int | None:
@@ -23,6 +57,16 @@ def scenario(self) -> int | None:
     def control_panel(self) -> str | None:
         return self._control_panel
 
+    @property
+    def event(self) -> str | None:
+        """'launched' for WHAT 1-31, the programming/lock state for WHAT 40-46, None for a status request."""
+        return self._event
+
+    @property
+    def programming_scenario(self) -> int | None:
+        """Scenario named by a WHAT 40/41/42 parameter, None when it targets all."""
+        return self._programming_scenario
+
 
 
 class OWNAuxEvent(OWNEvent):
diff --git a/tests/test_who0_scenario_module_states.py b/tests/test_who0_scenario_module_states.py
new file mode 100644
index 0000000..80e3099
--- /dev/null
+++ b/tests/test_who0_scenario_module_states.py
@@ -0,0 +1,54 @@
+"""WHO 0 WHAT 40-46 are scenario-module programming / lock states, not scenarios.
+
+Evidence: libqtdevices TS10_1_0_23 scenario_device.cpp:27-34 (START_PROG = 40,
+STOP_PROG = 41, DELETE = 42, LOCK = 43, UNLOCK = 44) and :93-156 (parseFrame);
+firmware replay on bt_luci (MyHomeServer1, F454, F459): *0*40#1*W## ACK bus
+11 00 1C 41, *0*41#1*W## 1C 61, *0*42*W## 1C 00, *0*42#1*W## 1C 21, *0*43*W##
+1C FF, *0*44*W## 1C E0; emitted by the firmware for bus frames: *0*42*31##,
+*0*43*31##, *0*45*99##, *0*46#9*99##.
+"""
+
+import pytest
+
+from OWNd.message import OWNEvent, OWNScenarioEvent
+
+
+@pytest.mark.parametrize(
+    ("frame", "event", "target"),
+    [
+        ("*0*40#1*11##", "programming started", 1),
+        ("*0*41#1*11##", "programming stopped", 1),
+        ("*0*42*31##", "deleted", None),
+        ("*0*42#1*11##", "deleted", 1),
+        ("*0*43*31##", "locked", None),
+        ("*0*44*11##", "unlocked", None),
+        ("*0*45*99##", "unavailable", None),
+        ("*0*46#9*99##", "memory full", 9),
+    ],
+)
+def test_programming_and_lock_states(frame: str, event: str, target: int | None):
+    msg = OWNEvent.parse(frame)
+    assert isinstance(msg, OWNScenarioEvent)
+    assert msg.event == event
+    assert msg.programming_scenario == target
+    assert msg.scenario is None
+    assert "launched" not in msg.human_readable_log
+
+
+def test_plain_scenario_is_still_launched():
+    msg = OWNEvent.parse("*0*3*11##")
+    assert isinstance(msg, OWNScenarioEvent)
+    assert msg.scenario == 3
+    assert msg.event == "launched"
+    assert msg.programming_scenario is None
+    assert msg.human_readable_log == "Scenario 3 from control panel 11 has been launched."
+
+
+@pytest.mark.parametrize("frame", ["*#0*11##", "*#0##"])
+def test_status_request_is_not_a_launch(frame: str):
+    msg = OWNEvent.parse(frame)
+    assert isinstance(msg, OWNScenarioEvent)
+    assert msg.scenario is None
+    assert msg.event is None
+    assert msg.programming_scenario is None
+    assert "launched" not in msg.human_readable_log