diff --git a/modules/opcua_client_module/src/opcua_client_module_impl.cpp b/modules/opcua_client_module/src/opcua_client_module_impl.cpp
index 0ceb21a3..b50856af 100644
--- a/modules/opcua_client_module/src/opcua_client_module_impl.cpp
+++ b/modules/opcua_client_module/src/opcua_client_module_impl.cpp
@@ -1,18 +1,17 @@
 #include <opcua_client_module/opcua_client_module_impl.h>
 #include <opcua_client_module/version.h>
-#include <coretypes/version_info_factory.h>
-#include <chrono>
 #include <opcuatms_client/tms_client.h>
-#include <opendaq/custom_log.h>
+#include <coretypes/version_info_factory.h>
 #include <coreobjects/property_object_factory.h>
+#include <coreobjects/property_factory.h>
+#include <opendaq/custom_log.h>
 #include <opendaq/device_type_factory.h>
 #include <opendaq/mirrored_signal_config_ptr.h>
 #include <opendaq/search_filter_factory.h>
-#include <regex>
 #include <opendaq/address_info_factory.h>
-#include <coreobjects/property_factory.h>
-
 #include <opendaq/mirrored_device_config_ptr.h>
+#include <opendaq/device_private_ptr.h>
+#include <regex>
 
 BEGIN_NAMESPACE_OPENDAQ_OPCUA_CLIENT_MODULE
 static const char* DaqOpcUaDeviceTypeId = "OpenDAQOPCUAConfiguration";
@@ -115,6 +114,7 @@ DevicePtr OpcUaClientModule::onCreateDevice(const StringPtr& connectionString,
                   .addAddressInfo(addressInfo)
                   .freeze();
 
+    device.asPtr<IDevicePrivate>(true).setAsRoot();
     return device;
 }
 
diff --git a/shared/libraries/opcuatms/opcuatms_client/include/opcuatms_client/objects/tms_client_component_impl.h b/shared/libraries/opcuatms/opcuatms_client/include/opcuatms_client/objects/tms_client_component_impl.h
index 18511284..e6b93e0c 100644
--- a/shared/libraries/opcuatms/opcuatms_client/include/opcuatms_client/objects/tms_client_component_impl.h
+++ b/shared/libraries/opcuatms/opcuatms_client/include/opcuatms_client/objects/tms_client_component_impl.h
@@ -73,6 +73,8 @@ class TmsClientComponentBaseImpl : public TmsClientPropertyObjectBaseImpl<Impl>
 
     // Component overrides
     ErrCode INTERFACE_FUNC getActive(Bool* active) override;
+    ErrCode INTERFACE_FUNC getLocalActive(Bool* active) override;
+    ErrCode INTERFACE_FUNC getParentActive(Bool* active) override;
     ErrCode INTERFACE_FUNC setActive(Bool active) override;
     ErrCode INTERFACE_FUNC getName(IString** name) override;
     ErrCode INTERFACE_FUNC setName(IString* name) override;
diff --git a/shared/libraries/opcuatms/opcuatms_client/include/opcuatms_client/objects/tms_client_device_impl.h b/shared/libraries/opcuatms/opcuatms_client/include/opcuatms_client/objects/tms_client_device_impl.h
index 229a9e92..ba8264e2 100644
--- a/shared/libraries/opcuatms/opcuatms_client/include/opcuatms_client/objects/tms_client_device_impl.h
+++ b/shared/libraries/opcuatms/opcuatms_client/include/opcuatms_client/objects/tms_client_device_impl.h
@@ -38,6 +38,7 @@ class TmsClientDeviceImpl : public TmsClientComponentBaseImpl<MirroredDeviceBase
     ErrCode INTERFACE_FUNC setOperationMode(OperationModeType modeType) override;
     ErrCode INTERFACE_FUNC setOperationModeRecursive(OperationModeType modeType) override;
     ErrCode INTERFACE_FUNC getOperationMode(OperationModeType* modeType) override;
+    ErrCode INTERFACE_FUNC getParentActive(Bool* active) override;
 
 protected:
     void findAndCreateSubdevices();
diff --git a/shared/libraries/opcuatms/opcuatms_client/src/objects/tms_client_component_impl.cpp b/shared/libraries/opcuatms/opcuatms_client/src/objects/tms_client_component_impl.cpp
index b717e93d..2d08586b 100644
--- a/shared/libraries/opcuatms/opcuatms_client/src/objects/tms_client_component_impl.cpp
+++ b/shared/libraries/opcuatms/opcuatms_client/src/objects/tms_client_component_impl.cpp
@@ -29,6 +29,25 @@ ErrCode TmsClientComponentBaseImpl<Impl>::getActive(Bool* active)
     return OPENDAQ_SUCCESS;
 }
 
+template <class Impl>
+ErrCode TmsClientComponentBaseImpl<Impl>::getLocalActive(Bool* active)
+{
+    return DAQ_MAKE_ERROR_INFO(OPENDAQ_ERR_NOT_SUPPORTED);
+}
+
+template <class Impl>
+ErrCode TmsClientComponentBaseImpl<Impl>::getParentActive(Bool* active)
+{
+    ComponentPtr parent;
+    OPENDAQ_RETURN_IF_FAILED(this->getParent(&parent));
+
+    if (parent.assigned())
+        return parent->getActive(active);
+    else
+        *active = True;
+    return OPENDAQ_SUCCESS;
+}
+
 template <class Impl>
 ErrCode TmsClientComponentBaseImpl<Impl>::setActive(Bool active)
 {
diff --git a/shared/libraries/opcuatms/opcuatms_client/src/objects/tms_client_device_impl.cpp b/shared/libraries/opcuatms/opcuatms_client/src/objects/tms_client_device_impl.cpp
index 0d23f8e8..fc2c6525 100644
--- a/shared/libraries/opcuatms/opcuatms_client/src/objects/tms_client_device_impl.cpp
+++ b/shared/libraries/opcuatms/opcuatms_client/src/objects/tms_client_device_impl.cpp
@@ -489,6 +489,19 @@ PropertyObjectPtr TmsClientDeviceImpl::onCreateDefaultAddDeviceConfig()
     return PropertyObject();
 }
 
+ErrCode TmsClientDeviceImpl::getParentActive(Bool* active)
+{
+    OPENDAQ_PARAM_NOT_NULL(active);
+
+    if (this->isRootDevice)
+    {
+        *active = True;
+        return OPENDAQ_SUCCESS;
+    }
+
+    return Super::getParentActive(active);
+}
+
 void TmsClientDeviceImpl::findAndCreateFunctionBlocks()
 {
     std::map<uint32_t, FunctionBlockPtr> orderedFunctionBlocks;
diff --git a/shared/libraries/opcuatms/tests/opcuatms_integration/test_tms_folder.cpp b/shared/libraries/opcuatms/tests/opcuatms_integration/test_tms_folder.cpp
index b3ed8a4f..66286075 100644
--- a/shared/libraries/opcuatms/tests/opcuatms_integration/test_tms_folder.cpp
+++ b/shared/libraries/opcuatms/tests/opcuatms_integration/test_tms_folder.cpp
@@ -116,6 +116,95 @@ TEST_F(TmsFolderTest, Active)
               folder.clientFolder.getItems()[0].asPtr<IFolder>().getItems()[0].getActive());
 }
 
+TEST_F(TmsFolderTest, GetParentActiveParentIsActive)
+{
+    auto folder = registerTestFolder(createTestFolder());
+
+    auto child = folder.clientFolder.getItems()[0];
+    Bool active = false;
+    ASSERT_EQ(child->getParentActive(&active), OPENDAQ_SUCCESS);
+    ASSERT_EQ(active, folder.serverFolder.getActive());
+}
+
+TEST_F(TmsFolderTest, GetParentActiveParentIsInactive)
+{
+    auto folder = registerTestFolder(createTestFolder());
+
+    folder.clientFolder.setActive(false);
+    auto child = folder.clientFolder.getItems()[0];
+    Bool active = true;
+    ASSERT_EQ(child->getParentActive(&active), OPENDAQ_SUCCESS);
+    ASSERT_EQ(active, folder.serverFolder.getActive());
+}
+
+// When the folder is set inactive, nested components inherit that state:
+// server's getActive() returns localActive && parentActive, so OPC UA
+// reflects the combined value. All assertions below verify client == server.
+
+TEST_F(TmsFolderTest, NestedActiveInheritsParentInactive)
+{
+    auto folder = registerTestFolder(createTestFolder());
+    auto child  = folder.clientFolder.getItems()[0];
+
+    // baseline
+    ASSERT_TRUE(folder.clientFolder.getActive());
+    ASSERT_TRUE(child.getActive());
+
+    folder.clientFolder.setActive(false);
+
+    ASSERT_FALSE(folder.clientFolder.getActive());
+    ASSERT_EQ(folder.serverFolder.getActive(), folder.clientFolder.getActive());
+
+    // child's getActive reads OPC UA which reflects parentActive &&  localActive
+    ASSERT_FALSE(child.getActive());
+    ASSERT_EQ(folder.serverFolder.getItems()[0].getActive(), child.getActive());
+}
+
+TEST_F(TmsFolderTest, NestedGetParentActiveMatchesFolderActive)
+{
+    auto folder = registerTestFolder(createTestFolder());
+    auto child  = folder.clientFolder.getItems()[0];
+
+    folder.clientFolder.setActive(false);
+
+    Bool parentActive;
+    ASSERT_EQ(child->getParentActive(&parentActive), OPENDAQ_SUCCESS);
+    ASSERT_FALSE(parentActive);
+    ASSERT_EQ(parentActive, folder.serverFolder.getActive());
+}
+
+TEST_F(TmsFolderTest, DeepNestedActiveInheritsParentInactive)
+{
+    auto folder = registerTestFolder(createTestFolder());
+    auto child  = folder.clientFolder.getItems()[0];
+    auto leaf   = child.asPtr<IFolder>().getItems()[0];
+
+    folder.clientFolder.setActive(false);
+
+    // leaf.getActive() reads OPC UA: serverLeaf.getActive() = localActive && serverChild.getActive()
+    //   = true && (localActive && serverFolder.getActive()) = true && (true && false) = false
+    ASSERT_FALSE(leaf.getActive());
+    ASSERT_EQ(folder.serverFolder.getItems()[0].asPtr<IFolder>().getItems()[0].getActive(), leaf.getActive());
+
+    // leaf.getParentActive() calls child.getActive() which is also false
+    Bool parentActive;
+    ASSERT_EQ(leaf->getParentActive(&parentActive), OPENDAQ_SUCCESS);
+    ASSERT_FALSE(parentActive);
+}
+
+TEST_F(TmsFolderTest, NestedActiveRestoresAfterFolderReactivated)
+{
+    auto folder = registerTestFolder(createTestFolder());
+    auto child  = folder.clientFolder.getItems()[0];
+
+    folder.clientFolder.setActive(false);
+    ASSERT_FALSE(child.getActive());
+
+    folder.clientFolder.setActive(true);
+    ASSERT_TRUE(child.getActive());
+    ASSERT_EQ(folder.serverFolder.getItems()[0].getActive(), child.getActive());
+}
+
 TEST_F(TmsFolderTest, Tags)
 {
     auto folder = registerTestFolder(createTestFolder());