diff --git a/mobile/src/main/java/org/openhab/habdroid/ui/WidgetAdapter.java b/mobile/src/main/java/org/openhab/habdroid/ui/WidgetAdapter.java
index ad937674371b2e12ad91ac8e412f766366a2de05..3f8f0619727944fb40298cc43bbad0c431ff2ee2 100644
--- a/mobile/src/main/java/org/openhab/habdroid/ui/WidgetAdapter.java
+++ b/mobile/src/main/java/org/openhab/habdroid/ui/WidgetAdapter.java
@@ -19,6 +19,7 @@ import android.graphics.Bitmap;
 import android.graphics.BitmapFactory;
 import android.graphics.Color;
 import android.net.Uri;
+import android.os.Build;
 import android.os.Handler;
 import android.os.Message;
 import android.preference.PreferenceManager;
@@ -55,17 +56,25 @@ import com.larswerkman.holocolorpicker.ColorPicker;
 import com.larswerkman.holocolorpicker.SaturationBar;
 import com.larswerkman.holocolorpicker.ValueBar;
 import okhttp3.HttpUrl;
+import okhttp3.ResponseBody;
+import retrofit2.Call;
+import retrofit2.Callback;
+import retrofit2.Response;
+
 import org.openhab.habdroid.R;
 import org.openhab.habdroid.core.connection.Connection;
 import org.openhab.habdroid.model.Item;
 import org.openhab.habdroid.model.LabeledValue;
+import org.openhab.habdroid.model.Recognition;
 import org.openhab.habdroid.model.Widget;
 import org.openhab.habdroid.ui.widget.DividerItemDecoration;
 import org.openhab.habdroid.ui.widget.ExtendedSpinner;
 import org.openhab.habdroid.ui.widget.SegmentedControlButton;
 import org.openhab.habdroid.ui.widget.WidgetImageView;
 import org.openhab.habdroid.util.Constants;
+import org.openhab.habdroid.util.GetDataService;
 import org.openhab.habdroid.util.MjpegStreamer;
+import org.openhab.habdroid.util.RetrofitClientInstance;
 import org.openhab.habdroid.util.Util;
 
 import java.util.ArrayList;
@@ -998,12 +1007,30 @@ public class WidgetAdapter extends RecyclerView.Adapter<WidgetAdapter.ViewHolder
     private final static Handler mSnackbarHandler = new Handler();
     private final static int DELAY_SNACKBAR = 2000;
 
-    private static void showSnackbar(View v, int delay) {
+    private static void showSnackbar(View v, int delay, String identifier) {
         mSnackbarHandler.removeCallbacksAndMessages(null);
         final View currentView = v.getRootView();
         Snackbar snackbar = Snackbar.make(currentView, "Manuelle Änderung als neuen Standardwert setzen?", Snackbar.LENGTH_LONG);
         snackbar.setAction("Setze als\nStandard", v1 -> {
             Toast.makeText(currentView.getContext(), "Änderung wurde als neuer Standardwert gesetzt!", Toast.LENGTH_SHORT).show();
+            try {
+                GetDataService service = RetrofitClientInstance.getRetrofitInstance(currentView.getContext()).create(GetDataService.class);
+                Call<ResponseBody> call = service.setNewDefaultValue(identifier);
+                call.enqueue(new Callback<ResponseBody>() {
+
+                    @Override
+                    public void onResponse(Call<ResponseBody> call, Response<ResponseBody> response) {
+                        Toast.makeText(currentView.getContext(), "Success", Toast.LENGTH_LONG).show();
+                    }
+
+                    @Override
+                    public void onFailure(Call<ResponseBody> call, Throwable t) {
+                        Toast.makeText(currentView.getContext(), "Failure", Toast.LENGTH_LONG).show();
+                    }
+                });
+            } catch (IllegalArgumentException e) {
+                Toast.makeText(currentView.getContext(), e.getLocalizedMessage(), Toast.LENGTH_LONG).show();
+            }
         });
         mSnackbarHandler.postDelayed(() -> {
             snackbar.show();
@@ -1047,7 +1074,7 @@ public class WidgetAdapter extends RecyclerView.Adapter<WidgetAdapter.ViewHolder
                 if (v.getTag() instanceof String) {
                     final String cmd = (String) v.getTag();
                     Util.sendItemCommand(mConnection.getAsyncHttpClient(), mBoundItem, cmd);
-                    WidgetAdapter.showSnackbar(itemView, DELAY_SNACKBAR);
+                    WidgetAdapter.showSnackbar(itemView, DELAY_SNACKBAR, mBoundItem.name());
                 } else {
                     showColorPickerDialog();
                 }
@@ -1097,7 +1124,7 @@ public class WidgetAdapter extends RecyclerView.Adapter<WidgetAdapter.ViewHolder
                     .setView(contentView)
                     .setOnDismissListener(dialog -> {
                         if (mColorChanged) {
-                            WidgetAdapter.showSnackbar(itemView, 0);
+                            WidgetAdapter.showSnackbar(itemView, 0, mBoundItem.name());
                             mColorChanged = false;
                         }
                     })
diff --git a/mobile/src/main/java/org/openhab/habdroid/util/GetDataService.java b/mobile/src/main/java/org/openhab/habdroid/util/GetDataService.java
index 9db72a0b267f582dcc41a28c74fa8ea901485595..a0dbe06b183dd572ac308a37588987931e28afd2 100644
--- a/mobile/src/main/java/org/openhab/habdroid/util/GetDataService.java
+++ b/mobile/src/main/java/org/openhab/habdroid/util/GetDataService.java
@@ -4,8 +4,11 @@ import org.openhab.habdroid.model.Recognition;
 
 import java.util.List;
 
+import okhttp3.ResponseBody;
 import retrofit2.Call;
 import retrofit2.http.GET;
+import retrofit2.http.PUT;
+import retrofit2.http.Path;
 
 /*
  *  OpenLicht
@@ -18,6 +21,9 @@ public interface GetDataService {
     @GET("/events/long")
     Call<List<Recognition>> getAllRecognitions();
 
+    @PUT("/feedback/{identifier}/newDefault")
+    Call<ResponseBody> setNewDefaultValue(@Path("identifier") String identifier);
+
 
 //    @GET("/recognitions")
 //    Call<List<Recognition>> getAllRecognitions();
diff --git a/mobile/src/main/java/org/openhab/habdroid/util/RetrofitClientInstance.java b/mobile/src/main/java/org/openhab/habdroid/util/RetrofitClientInstance.java
index 75bb74c436222daf842d04c7c169c8c23f213f76..0b79119adab1e02e8a28afeb7d1d6458dd4f9f87 100644
--- a/mobile/src/main/java/org/openhab/habdroid/util/RetrofitClientInstance.java
+++ b/mobile/src/main/java/org/openhab/habdroid/util/RetrofitClientInstance.java
@@ -1,6 +1,7 @@
 package org.openhab.habdroid.util;
 
 import android.app.Activity;
+import android.content.Context;
 import android.content.SharedPreferences;
 import android.preference.PreferenceManager;
 
@@ -17,7 +18,7 @@ public class RetrofitClientInstance {
     private static Retrofit retrofit;
 
 
-    public static Retrofit getRetrofitInstance(Activity activity) {
+    public static Retrofit getRetrofitInstance(Context activity) {
         SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(activity);
         String url = preferences.getString(Constants.PREFERENCE_OPENLICHT_URL, "");
         if (retrofit == null || !retrofit.baseUrl().toString().equals(url)) {