diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 6790534..e1db1c7 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -8,6 +8,7 @@
         android:label="@string/app_name"
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
+        android:localeConfig="@xml/locales_config"
         android:theme="@style/Theme.MetaPluginDemo">
         <activity
             android:name="de.webidsolutions.metaplugindemo.MainActivity"
diff --git a/app/src/main/java/de/webidsolutions/metaplugindemo/MainActivity.kt b/app/src/main/java/de/webidsolutions/metaplugindemo/MainActivity.kt
index feb0fb1..fee2727 100644
--- a/app/src/main/java/de/webidsolutions/metaplugindemo/MainActivity.kt
+++ b/app/src/main/java/de/webidsolutions/metaplugindemo/MainActivity.kt
@@ -79,7 +79,7 @@ internal class MainActivity : AppCompatActivity() {
         startButton = findViewById(R.id.startButton)
         startButton.setOnClickListener {
             clearLog()
-            writeLog("Starting…")
+            writeLog(getString(R.string.starting))
             createCoreSdk()
         }
     }
@@ -90,7 +90,7 @@ internal class MainActivity : AppCompatActivity() {
      * Creates the Core SDK from the existing credentials.
      */
     private fun createCoreSdk() {
-        writeLog("Creating the Core SDK…")
+        writeLog(getString(R.string.creating_core_sdk))
 
         // should be provided to you -> currently just using demo credentials
         val selectedUri: URI = chosenEnvironment.uri
@@ -103,7 +103,7 @@ internal class MainActivity : AppCompatActivity() {
             *chosenEnvironment.shaPins
         )
 
-        writeLog("Core SDK creation successful")
+        writeLog(getString(R.string.core_sdk_creation_successful))
         validateActionId()
 
         val selectProductPlugins = getSelectedPlugins()
@@ -124,7 +124,7 @@ internal class MainActivity : AppCompatActivity() {
      * Validates the WebID actionID
      */
     private fun validateActionId() {
-        writeLog("Validate Action-ID…")
+        writeLog(getString(R.string.validate_action_id))
 
         try {
             parseInt(actionId)
@@ -132,7 +132,7 @@ internal class MainActivity : AppCompatActivity() {
                 throw NumberFormatException()
             }
         } catch (e: NumberFormatException) {
-            writeLog("Failure: action id was not set to 9-digit number string in MainActivity.kt file")
+            writeLog(getString(R.string.action_id_not_valid))
         }
     }
 
diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml
index 652e5ec..b5da5e9 100644
--- a/app/src/main/res/layout/activity_main.xml
+++ b/app/src/main/res/layout/activity_main.xml
@@ -13,7 +13,7 @@
         android:layout_height="wrap_content"
         android:layout_marginLeft="13dp"
         android:layout_marginTop="13dp"
-        android:text="Choose Plugins To Add:"
+        android:text="@string/choose_plugins"
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toTopOf="parent" />
 
@@ -24,7 +24,7 @@
         android:layout_height="wrap_content"
         android:layout_marginLeft="30dp"
         android:layout_marginTop="13dp"
-        android:text="AutoIdOnServer"
+        android:text="@string/autoid"
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toBottomOf="@+id/tv_plugins_header" />
 
@@ -33,7 +33,7 @@
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_marginLeft="30dp"
-        android:text="PayOnServer"
+        android:text="@string/accountid"
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toBottomOf="@+id/cb_plugin_auto_id_on_server" />
 
@@ -42,7 +42,7 @@
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_marginLeft="30dp"
-        android:text="EidOnServer"
+        android:text="@string/eid"
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toBottomOf="@+id/cb_plugin_pay_on_server" />
 
@@ -51,7 +51,7 @@
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_marginLeft="30dp"
-        android:text="VideoId"
+        android:text="@string/videoid"
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toBottomOf="@+id/cb_plugin_eid_on_server" />
 
@@ -71,13 +71,13 @@
         android:layout_width="0dp"
         android:layout_height="0dp"
         android:layout_marginStart="@dimen/grid_margin"
-        android:layout_marginEnd="@dimen/grid_margin"
         android:layout_marginTop="@dimen/grid_margin"
+        android:layout_marginEnd="@dimen/grid_margin"
         android:layout_marginBottom="@dimen/grid_margin"
         app:layout_constraintBottom_toTopOf="@id/startButton"
-        app:layout_constraintTop_toBottomOf="@id/logHeadline"
         app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintStart_toStartOf="parent">
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@id/logHeadline">
 
         <LinearLayout
             android:layout_width="match_parent"
@@ -88,7 +88,7 @@
                 android:id="@+id/log"
                 android:layout_width="match_parent"
                 android:layout_height="wrap_content"
-                android:text="@string/log_placeholder"/>
+                android:text="@string/log_placeholder" />
 
         </LinearLayout>
 
@@ -98,14 +98,14 @@
         android:id="@+id/startButton"
         android:layout_width="match_parent"
         android:layout_height="@dimen/button_height"
-        android:text="@string/start_button"
-        android:backgroundTint="@color/colorBlueWebid"
-        android:textColor="@color/white"
-        android:layout_marginBottom="@dimen/grid_margin"
-        android:layout_marginEnd="@dimen/grid_margin"
         android:layout_marginStart="@dimen/grid_margin"
+        android:layout_marginEnd="@dimen/grid_margin"
+        android:layout_marginBottom="@dimen/grid_margin"
+        android:backgroundTint="@color/colorBlueWebid"
+        android:text="@string/start_button"
+        android:textColor="@color/white"
         app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintStart_toStartOf="parent"/>
+        app:layout_constraintStart_toStartOf="parent" />
 
 </androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
diff --git a/app/src/main/res/values-de/strings.xml b/app/src/main/res/values-de/strings.xml
new file mode 100644
index 0000000..38a8e8b
--- /dev/null
+++ b/app/src/main/res/values-de/strings.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="start_button">Starte Meta Plugin</string>
+    <string name="log_headline">Log:</string>
+    <string name="log_placeholder">Noch keine Einträge…</string>
+    <string name="choose_plugins">Plugins auswählen:</string>
+    <string name="creating_core_sdk">Core SDK wird erstellt…</string>
+    <string name="starting">Meta Plugin wird gestartet…</string>
+    <string name="core_sdk_creation_successful">Core SDK erfolgreich erstellt</string>
+    <string name="validate_action_id">Validiere Vorgangsnummer…</string>
+    <string name="action_id_not_valid">Fehler: Die Vorgangsnummer (Action-ID) wurde in der Datei „MainActivity.kt“ nicht auf eine 9-stellige Zahlenfolge gesetzt.</string>
+</resources>
\ No newline at end of file
diff --git a/app/src/main/res/values-es/strings.xml b/app/src/main/res/values-es/strings.xml
new file mode 100644
index 0000000..e9abb2f
--- /dev/null
+++ b/app/src/main/res/values-es/strings.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="start_button">Iniciar Meta Plugin</string>
+    <string name="log_headline">Registro:</string>
+    <string name="log_placeholder">Aún nada…</string>
+    <string name="choose_plugins">Seleccionar plugins:</string>
+    <string name="creating_core_sdk">Creando Core SDK…</string>
+    <string name="starting">Iniciando Meta Plugin…</string>
+    <string name="core_sdk_creation_successful">Core SDK creado correctamente</string>
+    <string name="validate_action_id">Validar número de operación…</string>
+    <string name="action_id_not_valid">Error: El número de operación («action-ID») no se ha establecido en una secuencia numérica de 9 dígitos en el archivo «MainActivity.kt».</string>
+</resources>
\ No newline at end of file
diff --git a/app/src/main/res/values-fr/strings.xml b/app/src/main/res/values-fr/strings.xml
new file mode 100644
index 0000000..b0b6721
--- /dev/null
+++ b/app/src/main/res/values-fr/strings.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="start_button">Démarrer Meta Plugin</string>
+    <string name="log_headline">Journal :</string>
+    <string name="log_placeholder">Rien pour l’instant…</string>
+    <string name="choose_plugins">Sélectionner les plugins :</string>
+    <string name="creating_core_sdk">Création de Core SDK…</string>
+    <string name="starting">Démarrage de Meta Plugin…</string>
+    <string name="core_sdk_creation_successful">Core SDK créé avec succès</string>
+    <string name="validate_action_id">Valider le numéro d\'opération…</string>
+    <string name="action_id_not_valid">Erreur : le numéro d\'opération (ActionID) n\'a pas été défini sur une séquence de 9 chiffres dans le fichier « MainActivity.kt ».</string>
+</resources>
\ No newline at end of file
diff --git a/app/src/main/res/values-it/strings.xml b/app/src/main/res/values-it/strings.xml
new file mode 100644
index 0000000..3282bfc
--- /dev/null
+++ b/app/src/main/res/values-it/strings.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="start_button">Avvia Meta Plugin</string>
+    <string name="log_headline">Registro:</string>
+    <string name="log_placeholder">Ancora nulla…</string>
+    <string name="choose_plugins">Selezionare i plugin:</string>
+    <string name="creating_core_sdk">Creazione di Core SDK…</string>
+    <string name="starting">Avvio di Meta Plugin…</string>
+    <string name="core_sdk_creation_successful">Core SDK creato con successo</string>
+    <string name="validate_action_id">Convalida numero operazione…</string>
+    <string name="action_id_not_valid">Errore: il numero dell\'operazione (ActionID) non è stato impostato su una sequenza di 9 cifre nel file “MainActivity.kt”.</string>
+</resources>
\ No newline at end of file
diff --git a/app/src/main/res/values-nl/strings.xml b/app/src/main/res/values-nl/strings.xml
new file mode 100644
index 0000000..d7087e0
--- /dev/null
+++ b/app/src/main/res/values-nl/strings.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="start_button">Start Meta Plugin</string>
+    <string name="log_headline">Log:</string>
+    <string name="log_placeholder">Nog niets…</string>
+    <string name="choose_plugins">Plug-ins selecteren:</string>
+    <string name="creating_core_sdk">Core SDK wordt gemaakt…</string>
+    <string name="starting">Meta Plugin wordt gestart…</string>
+    <string name="core_sdk_creation_successful">Core SDK succesvol aangemaakt</string>
+    <string name="validate_action_id">Valideer transactienummer…</string>
+    <string name="action_id_not_valid">Fout: het actienummer (ActionID) is in het bestand “MainActivity.kt” niet ingesteld op een reeks van 9 cijfers.</string>
+</resources>
\ No newline at end of file
diff --git a/app/src/main/res/values-pl/strings.xml b/app/src/main/res/values-pl/strings.xml
new file mode 100644
index 0000000..e9649f4
--- /dev/null
+++ b/app/src/main/res/values-pl/strings.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="start_button">Uruchom Meta-Plugin</string>
+    <string name="log_headline">Dziennik:</string>
+    <string name="log_placeholder">Na razie nic…</string>
+    <string name="choose_plugins">Wybierz wtyczki:</string>
+    <string name="creating_core_sdk">Tworzenie Core SDK…</string>
+    <string name="starting">Uruchamianie Meta Plugin…</string>
+    <string name="core_sdk_creation_successful">Core SDK utworzony pomyślnie</string>
+    <string name="validate_action_id">Zatwierdź numer operacji…</string>
+    <string name="action_id_not_valid">Błąd: Numer operacji (Action-ID) nie został ustawiony na 9-cyfrową sekwencję cyfr w pliku „MainActivity.kt”.</string>
+</resources>
\ No newline at end of file
diff --git a/app/src/main/res/values-ro/strings.xml b/app/src/main/res/values-ro/strings.xml
new file mode 100644
index 0000000..29687e7
--- /dev/null
+++ b/app/src/main/res/values-ro/strings.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="start_button">Pornește Meta Plugin</string>
+    <string name="log_headline">Jurnal:</string>
+    <string name="log_placeholder">Încă nimic…</string>
+    <string name="choose_plugins">Selectarea pluginurilor:</string>
+    <string name="creating_core_sdk">Se creează Core SDK…</string>
+    <string name="starting">Se pornește Meta Plugin…</string>
+    <string name="core_sdk_creation_successful">Core SDK creat cu succes</string>
+    <string name="validate_action_id">Validați numărul operațiunii…</string>
+    <string name="action_id_not_valid">Eroare: Numărul operațiunii („Action-ID”) nu a fost setat la o secvență de 9 cifre în fișierul „MainActivity.kt”.</string>
+</resources>
\ No newline at end of file
diff --git a/app/src/main/res/values-tr/strings.xml b/app/src/main/res/values-tr/strings.xml
new file mode 100644
index 0000000..c515290
--- /dev/null
+++ b/app/src/main/res/values-tr/strings.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="start_button">Meta Plugin\'i başlat</string>
+    <string name="log_headline">Günlük :</string>
+    <string name="log_placeholder">Henüz bir şey yok…</string>
+    <string name="choose_plugins">Eklentileri seçin:</string>
+    <string name="creating_core_sdk">Core SDK oluşturuluyor…</string>
+    <string name="starting">Meta Plugin başlatılıyor…</string>
+    <string name="core_sdk_creation_successful">Core SDK başarıyla oluşturuldu</string>
+    <string name="validate_action_id">İşlem numarasını doğrula…</string>
+    <string name="action_id_not_valid">Hata: İşlem numarası (Action-ID) “MainActivity.kt” dosyasında 9 basamaklı bir sayı dizisi olarak ayarlanmamıştır.</string>
+</resources>
\ No newline at end of file
diff --git a/app/src/main/res/values/constants.xml b/app/src/main/res/values/constants.xml
new file mode 100644
index 0000000..a8d1eb7
--- /dev/null
+++ b/app/src/main/res/values/constants.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="app_name" translatable="false">MetaPluginDemo</string>
+    <string name="autoid" translatable="false">AutoID</string>
+    <string name="accountid" translatable="false">AccountID</string>
+    <string name="eid" translatable="false">eID</string>
+    <string name="videoid" translatable="false">VideoID</string>
+</resources>
\ No newline at end of file
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 8c79da3..b49bc6f 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -1,6 +1,11 @@
 <resources>
-    <string name="app_name">MetaPluginDemo</string>
     <string name="start_button">Start Meta Plugin</string>
     <string name="log_headline">Log:</string>
     <string name="log_placeholder">Nothing yet…</string>
+    <string name="choose_plugins">Choose Plugins To Add:</string>
+    <string name="creating_core_sdk">Creating the Core SDK…</string>
+    <string name="starting">Starting Meta Plugin…</string>
+    <string name="core_sdk_creation_successful">Core SDK creation successful</string>
+    <string name="validate_action_id">Validate Action-ID…</string>
+    <string name="action_id_not_valid">Failure: The transaction number (Action-ID) was not set to 9-digit number string in MainActivity.kt file.</string>
 </resources>
\ No newline at end of file
diff --git a/app/src/main/res/xml/locales_config.xml b/app/src/main/res/xml/locales_config.xml
new file mode 100644
index 0000000..c0b5710
--- /dev/null
+++ b/app/src/main/res/xml/locales_config.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<locale-config xmlns:android="http://schemas.android.com/apk/res/android">
+    <locale android:name="en"/>
+    <locale android:name="de"/>
+    <locale android:name="fr"/>
+    <locale android:name="es"/>
+    <locale android:name="it"/>
+    <locale android:name="nl"/>
+    <locale android:name="pl"/>
+    <locale android:name="ro"/>
+    <locale android:name="tr"/>
+</locale-config>
\ No newline at end of file