diff --git a/xyz.openbmc_project.Sensor.Threshold.Warning.cpp b/xyz.openbmc_project.Sensor.Threshold.Warning.cpp
new file mode 100644
index 0000000..4e06927
--- /dev/null
+++ b/xyz.openbmc_project.Sensor.Threshold.Warning.cpp
@@ -0,0 +1,360 @@
+#include <algorithm>
+#include <sdbusplus/server.hpp>
+#include <sdbusplus/exception.hpp>
+#include <xyz/openbmc_project/Sensor/Threshold/Warning/server.hpp>
+
+namespace sdbusplus
+{
+namespace xyz
+{
+namespace openbmc_project
+{
+namespace Sensor
+{
+namespace Threshold
+{
+namespace server
+{
+
+Warning::Warning(bus::bus& bus, const char* path)
+        : _xyz_openbmc_project_Sensor_Threshold_Warning_interface(
+                bus, path, _interface, _vtable, this)
+{
+}
+
+
+
+auto Warning::warningHigh() const ->
+        int64_t
+{
+    return _warningHigh;
+}
+
+int Warning::_callback_get_WarningHigh(
+        sd_bus* bus, const char* path, const char* interface,
+        const char* property, sd_bus_message* reply, void* context,
+        sd_bus_error* error)
+{
+    using sdbusplus::server::binding::details::convertForMessage;
+
+    try
+    {
+        auto m = message::message(sd_bus_message_ref(reply));
+
+        auto o = static_cast<Warning*>(context);
+        m.append(convertForMessage(o->warningHigh()));
+    }
+    catch(sdbusplus::internal_exception_t& e)
+    {
+        sd_bus_error_set_const(error, e.name(), e.description());
+        return -EINVAL;
+    }
+
+    return true;
+}
+
+auto Warning::warningHigh(int64_t value) ->
+        int64_t
+{
+    if (_warningHigh != value)
+    {
+        _warningHigh = value;
+        _xyz_openbmc_project_Sensor_Threshold_Warning_interface.property_changed("WarningHigh");
+    }
+
+    return _warningHigh;
+}
+
+int Warning::_callback_set_WarningHigh(
+        sd_bus* bus, const char* path, const char* interface,
+        const char* property, sd_bus_message* value, void* context,
+        sd_bus_error* error)
+{
+    try
+    {
+        auto m = message::message(sd_bus_message_ref(value));
+
+        auto o = static_cast<Warning*>(context);
+
+        int64_t v{};
+        m.read(v);
+        o->warningHigh(v);
+    }
+    catch(sdbusplus::internal_exception_t& e)
+    {
+        sd_bus_error_set_const(error, e.name(), e.description());
+        return -EINVAL;
+    }
+
+    return true;
+}
+
+namespace details
+{
+namespace Warning
+{
+static const auto _property_WarningHigh =
+    utility::tuple_to_array(message::types::type_id<
+            int64_t>());
+}
+}
+auto Warning::warningLow() const ->
+        int64_t
+{
+    return _warningLow;
+}
+
+int Warning::_callback_get_WarningLow(
+        sd_bus* bus, const char* path, const char* interface,
+        const char* property, sd_bus_message* reply, void* context,
+        sd_bus_error* error)
+{
+    using sdbusplus::server::binding::details::convertForMessage;
+
+    try
+    {
+        auto m = message::message(sd_bus_message_ref(reply));
+
+        auto o = static_cast<Warning*>(context);
+        m.append(convertForMessage(o->warningLow()));
+    }
+    catch(sdbusplus::internal_exception_t& e)
+    {
+        sd_bus_error_set_const(error, e.name(), e.description());
+        return -EINVAL;
+    }
+
+    return true;
+}
+
+auto Warning::warningLow(int64_t value) ->
+        int64_t
+{
+    if (_warningLow != value)
+    {
+        _warningLow = value;
+        _xyz_openbmc_project_Sensor_Threshold_Warning_interface.property_changed("WarningLow");
+    }
+
+    return _warningLow;
+}
+
+int Warning::_callback_set_WarningLow(
+        sd_bus* bus, const char* path, const char* interface,
+        const char* property, sd_bus_message* value, void* context,
+        sd_bus_error* error)
+{
+    try
+    {
+        auto m = message::message(sd_bus_message_ref(value));
+
+        auto o = static_cast<Warning*>(context);
+
+        int64_t v{};
+        m.read(v);
+        o->warningLow(v);
+    }
+    catch(sdbusplus::internal_exception_t& e)
+    {
+        sd_bus_error_set_const(error, e.name(), e.description());
+        return -EINVAL;
+    }
+
+    return true;
+}
+
+namespace details
+{
+namespace Warning
+{
+static const auto _property_WarningLow =
+    utility::tuple_to_array(message::types::type_id<
+            int64_t>());
+}
+}
+auto Warning::warningAlarmHigh() const ->
+        bool
+{
+    return _warningAlarmHigh;
+}
+
+int Warning::_callback_get_WarningAlarmHigh(
+        sd_bus* bus, const char* path, const char* interface,
+        const char* property, sd_bus_message* reply, void* context,
+        sd_bus_error* error)
+{
+    using sdbusplus::server::binding::details::convertForMessage;
+
+    try
+    {
+        auto m = message::message(sd_bus_message_ref(reply));
+
+        auto o = static_cast<Warning*>(context);
+        m.append(convertForMessage(o->warningAlarmHigh()));
+    }
+    catch(sdbusplus::internal_exception_t& e)
+    {
+        sd_bus_error_set_const(error, e.name(), e.description());
+        return -EINVAL;
+    }
+
+    return true;
+}
+
+auto Warning::warningAlarmHigh(bool value) ->
+        bool
+{
+    if (_warningAlarmHigh != value)
+    {
+        _warningAlarmHigh = value;
+        _xyz_openbmc_project_Sensor_Threshold_Warning_interface.property_changed("WarningAlarmHigh");
+    }
+
+    return _warningAlarmHigh;
+}
+
+int Warning::_callback_set_WarningAlarmHigh(
+        sd_bus* bus, const char* path, const char* interface,
+        const char* property, sd_bus_message* value, void* context,
+        sd_bus_error* error)
+{
+    try
+    {
+        auto m = message::message(sd_bus_message_ref(value));
+
+        auto o = static_cast<Warning*>(context);
+
+        bool v{};
+        m.read(v);
+        o->warningAlarmHigh(v);
+    }
+    catch(sdbusplus::internal_exception_t& e)
+    {
+        sd_bus_error_set_const(error, e.name(), e.description());
+        return -EINVAL;
+    }
+
+    return true;
+}
+
+namespace details
+{
+namespace Warning
+{
+static const auto _property_WarningAlarmHigh =
+    utility::tuple_to_array(message::types::type_id<
+            bool>());
+}
+}
+auto Warning::warningAlarmLow() const ->
+        bool
+{
+    return _warningAlarmLow;
+}
+
+int Warning::_callback_get_WarningAlarmLow(
+        sd_bus* bus, const char* path, const char* interface,
+        const char* property, sd_bus_message* reply, void* context,
+        sd_bus_error* error)
+{
+    using sdbusplus::server::binding::details::convertForMessage;
+
+    try
+    {
+        auto m = message::message(sd_bus_message_ref(reply));
+
+        auto o = static_cast<Warning*>(context);
+        m.append(convertForMessage(o->warningAlarmLow()));
+    }
+    catch(sdbusplus::internal_exception_t& e)
+    {
+        sd_bus_error_set_const(error, e.name(), e.description());
+        return -EINVAL;
+    }
+
+    return true;
+}
+
+auto Warning::warningAlarmLow(bool value) ->
+        bool
+{
+    if (_warningAlarmLow != value)
+    {
+        _warningAlarmLow = value;
+        _xyz_openbmc_project_Sensor_Threshold_Warning_interface.property_changed("WarningAlarmLow");
+    }
+
+    return _warningAlarmLow;
+}
+
+int Warning::_callback_set_WarningAlarmLow(
+        sd_bus* bus, const char* path, const char* interface,
+        const char* property, sd_bus_message* value, void* context,
+        sd_bus_error* error)
+{
+    try
+    {
+        auto m = message::message(sd_bus_message_ref(value));
+
+        auto o = static_cast<Warning*>(context);
+
+        bool v{};
+        m.read(v);
+        o->warningAlarmLow(v);
+    }
+    catch(sdbusplus::internal_exception_t& e)
+    {
+        sd_bus_error_set_const(error, e.name(), e.description());
+        return -EINVAL;
+    }
+
+    return true;
+}
+
+namespace details
+{
+namespace Warning
+{
+static const auto _property_WarningAlarmLow =
+    utility::tuple_to_array(message::types::type_id<
+            bool>());
+}
+}
+
+
+const vtable::vtable_t Warning::_vtable[] = {
+    vtable::start(),
+    vtable::property("WarningHigh",
+                     details::Warning::_property_WarningHigh
+                        .data(),
+                     _callback_get_WarningHigh,
+                     _callback_set_WarningHigh,
+                     vtable::property_::emits_change),
+    vtable::property("WarningLow",
+                     details::Warning::_property_WarningLow
+                        .data(),
+                     _callback_get_WarningLow,
+                     _callback_set_WarningLow,
+                     vtable::property_::emits_change),
+    vtable::property("WarningAlarmHigh",
+                     details::Warning::_property_WarningAlarmHigh
+                        .data(),
+                     _callback_get_WarningAlarmHigh,
+                     _callback_set_WarningAlarmHigh,
+                     vtable::property_::emits_change),
+    vtable::property("WarningAlarmLow",
+                     details::Warning::_property_WarningAlarmLow
+                        .data(),
+                     _callback_get_WarningAlarmLow,
+                     _callback_set_WarningAlarmLow,
+                     vtable::property_::emits_change),
+    vtable::end()
+};
+
+} // namespace server
+} // namespace Threshold
+} // namespace Sensor
+} // namespace openbmc_project
+} // namespace xyz
+} // namespace sdbusplus
+