diff --git a/example/get-all-properties.cpp b/example/get-all-properties.cpp
index 7a2d037..fec7f6d 100644
--- a/example/get-all-properties.cpp
+++ b/example/get-all-properties.cpp
@@ -36,7 +36,8 @@
         ioc_(ioc),
         bus_(bus), objServer_(objServer)
     {
-        demo_ = objServer_.add_interface(xyz::demo::path, xyz::demo::interface);
+        demo_ = objServer_.add_unique_interface(xyz::demo::path,
+                                                xyz::demo::interface);
 
         demo_->register_property_r(name::greetings, std::string(),
                                    sdbusplus::vtable::property_::const_,
@@ -58,11 +59,6 @@
         demo_->initialize();
     }
 
-    ~Application()
-    {
-        objServer_.remove_interface(demo_);
-    }
-
     uint32_t fatalErrors() const
     {
         return fatalErrors_;
@@ -194,7 +190,7 @@
     sdbusplus::asio::connection& bus_;
     sdbusplus::asio::object_server& objServer_;
 
-    std::shared_ptr<sdbusplus::asio::dbus_interface> demo_;
+    std::unique_ptr<sdbusplus::asio::dbus_interface> demo_;
     std::string greetings_ = "Hello";
     std::string goodbyes_ = "Bye";
 
diff --git a/example/register-property.cpp b/example/register-property.cpp
index 530a004..1f6a730 100644
--- a/example/register-property.cpp
+++ b/example/register-property.cpp
@@ -73,27 +73,23 @@
         ioc_(ioc),
         bus_(bus), objServer_(objServer)
     {
-        demo_ = objServer_.add_interface(xyz::demo::path, xyz::demo::name);
+        demo_ = objServer_.add_unique_interface(
+            xyz::demo::path, xyz::demo::name,
+            [this](sdbusplus::asio::dbus_interface& demo) {
+                demo.register_property_r(
+                    name::greetings, std::string(),
+                    sdbusplus::vtable::property_::const_,
+                    [this](const auto&) { return greetings_; });
 
-        demo_->register_property_r(name::greetings, std::string(),
-                                   sdbusplus::vtable::property_::const_,
-                                   [this](const auto&) { return greetings_; });
-
-        demo_->register_property_rw(
-            name::goodbyes, std::string(),
-            sdbusplus::vtable::property_::emits_change,
-            [this](const auto& newPropertyValue, const auto&) {
-                goodbyes_ = newPropertyValue;
-                return 1;
-            },
-            [this](const auto&) { return goodbyes_; });
-
-        demo_->initialize();
-    }
-
-    ~Application()
-    {
-        objServer_.remove_interface(demo_);
+                demo.register_property_rw(
+                    name::goodbyes, std::string(),
+                    sdbusplus::vtable::property_::emits_change,
+                    [this](const auto& newPropertyValue, const auto&) {
+                        goodbyes_ = newPropertyValue;
+                        return 1;
+                    },
+                    [this](const auto&) { return goodbyes_; });
+            });
     }
 
     uint32_t fatalErrors() const
@@ -167,12 +163,18 @@
             });
     }
 
+    void syncChangeGoodbyes(std::string_view value)
+    {
+        goodbyes_ = value;
+        demo_->signal_property(name::goodbyes);
+    }
+
   private:
     boost::asio::io_context& ioc_;
     sdbusplus::asio::connection& bus_;
     sdbusplus::asio::object_server& objServer_;
 
-    std::shared_ptr<sdbusplus::asio::dbus_interface> demo_;
+    std::unique_ptr<sdbusplus::asio::dbus_interface> demo_;
     std::string greetings_ = "Hello";
     std::string goodbyes_ = "Bye";
 
@@ -201,6 +203,8 @@
 
     Application app(ioc, *bus, *objServer);
 
+    app.syncChangeGoodbyes("Good bye");
+
     boost::asio::post(ioc,
                       [&app] { app.asyncReadPropertyWithIncorrectType(); });
     boost::asio::post(ioc, [&app] { app.asyncReadProperties(); });