diff --git a/src/ADCSensorMain.cpp b/src/ADCSensorMain.cpp
index ef9ef44..cec0984 100644
--- a/src/ADCSensorMain.cpp
+++ b/src/ADCSensorMain.cpp
@@ -111,8 +111,7 @@
 
             const SensorData* sensorData = nullptr;
             const std::string* interfacePath = nullptr;
-            const std::pair<std::string, boost::container::flat_map<
-                                             std::string, BasicVariantType>>*
+            const std::pair<std::string, SensorBaseConfigMap>*
                 baseConfiguration = nullptr;
             for (const std::pair<sdbusplus::message::object_path, SensorData>&
                      sensor : sensorConfigurations)
diff --git a/src/ExitAirTempSensor.cpp b/src/ExitAirTempSensor.cpp
index 67c690f..8f4f76b 100644
--- a/src/ExitAirTempSensor.cpp
+++ b/src/ExitAirTempSensor.cpp
@@ -300,10 +300,8 @@
 {
     std::weak_ptr<CFMSensor> weakRef = weak_from_this();
     dbusConnection->async_method_call(
-        [weakRef,
-         path](const boost::system::error_code ec,
-               const boost::container::flat_map<std::string, BasicVariantType>&
-                   data) {
+        [weakRef, path](const boost::system::error_code ec,
+                        const SensorBaseConfigMap& data) {
         if (ec)
         {
             std::cerr << "Error getting properties from " << path << "\n";
@@ -838,9 +836,9 @@
     thresholds::checkThresholds(this);
 }
 
-static void loadVariantPathArray(
-    const boost::container::flat_map<std::string, BasicVariantType>& data,
-    const std::string& key, std::vector<std::string>& resp)
+static void loadVariantPathArray(const SensorBaseConfigMap& data,
+                                 const std::string& key,
+                                 std::vector<std::string>& resp)
 {
     auto it = data.find(key);
     if (it == data.end())
diff --git a/src/IntrusionSensorMain.cpp b/src/IntrusionSensorMain.cpp
index c4c4cd8..5d2b666 100644
--- a/src/IntrusionSensorMain.cpp
+++ b/src/IntrusionSensorMain.cpp
@@ -68,9 +68,8 @@
     }
 
     const SensorData* sensorData = nullptr;
-    const std::pair<std::string,
-                    boost::container::flat_map<std::string, BasicVariantType>>*
-        baseConfiguration = nullptr;
+    const std::pair<std::string, SensorBaseConfigMap>* baseConfiguration =
+        nullptr;
 
     // Get bus and addr of matched configuration
     for (const std::pair<sdbusplus::message::object_path, SensorData>& sensor :
@@ -182,50 +181,49 @@
     const std::shared_ptr<sdbusplus::asio::connection>& dbusConnection)
 {
     auto getter = std::make_shared<GetSensorConfiguration>(
-        dbusConnection,
-        [](const ManagedObjectType& sensorConfigurations) {
-        // Get NIC name and save to map
-        lanInfoMap.clear();
-        for (const std::pair<sdbusplus::message::object_path, SensorData>&
-                 sensor : sensorConfigurations)
-        {
-            const std::pair<std::string, boost::container::flat_map<
-                                             std::string, BasicVariantType>>*
-                baseConfiguration = nullptr;
-
-            // find base configuration
-            auto sensorBase = sensor.second.find(nicType);
-            if (sensorBase == sensor.second.end())
+        dbusConnection, [](const ManagedObjectType& sensorConfigurations) {
+            // Get NIC name and save to map
+            lanInfoMap.clear();
+            for (const std::pair<sdbusplus::message::object_path, SensorData>&
+                     sensor : sensorConfigurations)
             {
-                continue;
-            }
-            baseConfiguration = &(*sensorBase);
+                const std::pair<std::string, SensorBaseConfigMap>*
+                    baseConfiguration = nullptr;
 
-            auto findEthIndex = baseConfiguration->second.find("EthIndex");
-            auto findName = baseConfiguration->second.find("Name");
-
-            if (findEthIndex != baseConfiguration->second.end() &&
-                findName != baseConfiguration->second.end())
-            {
-                const auto* pEthIndex =
-                    std::get_if<uint64_t>(&findEthIndex->second);
-                const auto* pName = std::get_if<std::string>(&findName->second);
-                if (pEthIndex != nullptr && pName != nullptr)
+                // find base configuration
+                auto sensorBase = sensor.second.find(nicType);
+                if (sensorBase == sensor.second.end())
                 {
-                    lanInfoMap[*pEthIndex] = *pName;
-                    if (debugLanLeash)
+                    continue;
+                }
+                baseConfiguration = &(*sensorBase);
+
+                auto findEthIndex = baseConfiguration->second.find("EthIndex");
+                auto findName = baseConfiguration->second.find("Name");
+
+                if (findEthIndex != baseConfiguration->second.end() &&
+                    findName != baseConfiguration->second.end())
+                {
+                    const auto* pEthIndex =
+                        std::get_if<uint64_t>(&findEthIndex->second);
+                    const auto* pName =
+                        std::get_if<std::string>(&findName->second);
+                    if (pEthIndex != nullptr && pName != nullptr)
                     {
-                        std::cout << "find name of eth" << *pEthIndex << " is "
-                                  << *pName << "\n";
+                        lanInfoMap[*pEthIndex] = *pName;
+                        if (debugLanLeash)
+                        {
+                            std::cout << "find name of eth" << *pEthIndex
+                                      << " is " << *pName << "\n";
+                        }
                     }
                 }
             }
-        }
 
-        if (lanInfoMap.empty())
-        {
-            std::cerr << "can't find matched NIC name. \n";
-        }
+            if (lanInfoMap.empty())
+            {
+                std::cerr << "can't find matched NIC name. \n";
+            }
         });
 
     getter->getConfiguration(
@@ -236,7 +234,7 @@
 {
     const std::string& pathName = message.get_path();
     std::string interfaceName;
-    boost::container::flat_map<std::string, BasicVariantType> properties;
+    SensorBaseConfigMap properties;
     message.read(interfaceName, properties);
 
     auto findStateProperty = properties.find("OperationalState");
diff --git a/src/PSUSensorMain.cpp b/src/PSUSensorMain.cpp
index c710b4d..1683e39 100644
--- a/src/PSUSensorMain.cpp
+++ b/src/PSUSensorMain.cpp
@@ -377,8 +377,7 @@
             continue;
         }
 
-        const std::pair<std::string, boost::container::flat_map<
-                                         std::string, BasicVariantType>>*
+        const std::pair<std::string, SensorBaseConfigMap>*
             baseConfig = nullptr;
         const SensorData* sensorData = nullptr;
         const std::string* interfacePath = nullptr;
diff --git a/src/Thresholds.cpp b/src/Thresholds.cpp
index ff452bc..ae7718e 100644
--- a/src/Thresholds.cpp
+++ b/src/Thresholds.cpp
@@ -136,10 +136,9 @@
         std::string thresholdInterface =
             baseInterface + ".Thresholds" + std::to_string(ii);
         conn->async_method_call(
-            [&, path, threshold, thresholdInterface, labelMatch](
-                const boost::system::error_code& ec,
-                const boost::container::flat_map<std::string, BasicVariantType>&
-                    result) {
+            [&, path, threshold, thresholdInterface,
+             labelMatch](const boost::system::error_code& ec,
+                         const SensorBaseConfigMap& result) {
             if (ec)
             {
                 return; // threshold not supported