diff --git a/app/src/main/java/leszcz_team/wulkanowy/activity/main/Login.java b/app/src/main/java/leszcz_team/wulkanowy/activity/main/Login.java
index a26ea4e6..5eed1a8f 100644
--- a/app/src/main/java/leszcz_team/wulkanowy/activity/main/Login.java
+++ b/app/src/main/java/leszcz_team/wulkanowy/activity/main/Login.java
@@ -8,12 +8,12 @@ import org.jsoup.Connection;
 import org.jsoup.Jsoup;
 import org.jsoup.nodes.Document;
 import org.jsoup.select.Elements;
-import org.jsoup.helper.HttpConnection.Response;
 
 import java.io.IOException;
-import java.io.OutputStreamWriter;
 import java.util.Map;
 
+import leszcz_team.wulkanowy.R;
+
 public class Login extends AsyncTask<Void, Void, Void> {
 
     String email;
@@ -25,17 +25,30 @@ public class Login extends AsyncTask<Void, Void, Void> {
     Activity activity;
     String userMesage;
 
-    String urlForStepOne = "https://cufs.vulcan.net.pl/Default/Account/LogOn";
-    String urlForStepTwo = "https://cufs.vulcan.net.pl/{locationID}/FS/LS?wa=wsignin1.0&wtrealm=https://uonetplus.vulcan.net.pl/{locationID}/LoginEndpoint.aspx&wctx=https://uonetplus.vulcan.net.pl/{locationID}/LoginEndpoint.aspx";
-    String urlForStepThree = "https://uonetplus.vulcan.net.pl/{locationID}/LoginEndpoint.aspx";
+    String urlForStepOne;
+    String urlForStepTwo;
+    String urlForStepThree;
 
     public Login(String emailT, String passwordT, String countyT, Activity mainAC){
 
-        email = emailT;
-        password = passwordT;
-
-        county = "powiat" + countyT.substring(7);
         activity = mainAC;
+
+        if (emailT.equals("Debug")){
+            urlForStepOne = activity.getString(R.string.urlStepOneDebug);
+            urlForStepTwo = activity.getString(R.string.urlStepTwoDebug);
+            urlForStepThree = activity.getString(R.string.urlStepThreeDebug);
+            county = activity.getString(R.string.countyDebug);
+            email = activity.getString(R.string.emailDebug);
+            password = passwordT;
+        }
+        else{
+            urlForStepOne = activity.getString(R.string.urlStepOneRelease);
+            urlForStepTwo = activity.getString(R.string.urlStepTwoRelease);
+            urlForStepThree = activity.getString(R.string.urlStepThreeRelease);
+            county = "powiat" + countyT.substring(7);
+            email = emailT;
+            password = passwordT;
+        }
     }
 
     @Override
@@ -54,9 +67,10 @@ public class Login extends AsyncTask<Void, Void, Void> {
             String helloText = dashboardHtml.getElementsByClass("welcome").text();
 
             if (helloText.equals("Dzień dobry!")) {
-                userMesage = "Zalogowano pomyślnie! " + helloText;
-            } else {
-                userMesage = "Coś poszło nie tak :/";
+                userMesage = activity.getString(R.string.login_accepted);
+            }
+            else {
+                userMesage = activity.getString(R.string.login_denied);
             }
         }
         catch (IOException e){
diff --git a/app/src/main/java/leszcz_team/wulkanowy/activity/main/MainActivity.java b/app/src/main/java/leszcz_team/wulkanowy/activity/main/MainActivity.java
index 0b992e78..79f65cb4 100644
--- a/app/src/main/java/leszcz_team/wulkanowy/activity/main/MainActivity.java
+++ b/app/src/main/java/leszcz_team/wulkanowy/activity/main/MainActivity.java
@@ -54,12 +54,13 @@ public class MainActivity extends Activity {
         String email = adressEmail.getText().toString();
         String county = countyText.getText().toString();
 
-        if (password.isEmpty() || email.isEmpty() || county.isEmpty()){
-            Toast.makeText(this, R.string.data_text, Toast.LENGTH_SHORT).show();
-        }
-        else{
+        if (!email.isEmpty() || !password.isEmpty() || !county.isEmpty()){
             new Login(email, password, county, this).execute();
         }
+        else if (password.isEmpty() || email.isEmpty() || county.isEmpty()) {
+            Toast.makeText(this, R.string.data_text, Toast.LENGTH_SHORT).show();
+
+        }
 
     }
 }
diff --git a/app/src/main/res/values-pl/strings.xml b/app/src/main/res/values-pl/strings.xml
index b556b493..0ce47cd2 100644
--- a/app/src/main/res/values-pl/strings.xml
+++ b/app/src/main/res/values-pl/strings.xml
@@ -11,4 +11,6 @@
     <string name="warning_label">Ostrzeżenie</string>
     <string name="data_text">Brak danych logowania</string>
     <string name="error_feature_text">Funkcja którą chciałeś uruchomić nie działa</string>
+    <string name="login_accepted">Pomyślnie zalogowano</string>
+    <string name="login_denied">Logowanie nie powiodło się</string>
 </resources>
\ No newline at end of file
diff --git a/app/src/main/res/values/loginData.xml b/app/src/main/res/values/loginData.xml
new file mode 100644
index 00000000..41b0b776
--- /dev/null
+++ b/app/src/main/res/values/loginData.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+        <string name="urlStepOneRelease">https://cufs.vulcan.net.pl/Default/Account/LogOn</string>
+        <string name="urlStepTwoRelease">https://cufs.vulcan.net.pl/{locationID}/FS/LS?wa=wsignin1.0&amp;wtrealm=https://uonetplus.vulcan.net.pl/{locationID}/LoginEndpoint.aspx&amp;wctx=https://uonetplus.vulcan.net.pl/{locationID}/LoginEndpoint.aspx</string>
+        <string name="urlStepThreeRelease">https://uonetplus.vulcan.net.pl/{locationID}/LoginEndpoint.aspx"</string>
+        <string name="urlStepOneDebug">https://cufsdemo.vulcan.net.pl/Default/Account/LogOn</string>
+        <string name="urlStepTwoDebug">https://cufsdemo.vulcan.net.pl/{locationID}/FS/LS?wa=wsignin1.0&amp;wtrealm=https://uonetplusdemo.vulcan.net.pl/{locationID}/LoginEndpoint.aspx&amp;wctx=https://uonetplusdemo.vulcan.net.pl/{locationID}/LoginEndpoint.aspx</string>
+        <string name="urlStepThreeDebug">https://uonetplusdemo.vulcan.net.pl/{locationID}/LoginEndpoint.aspx"</string>
+        <string name="emailDebug">u43063@demouonetplus.vulcan.net.pl</string>
+        <string name="countyDebug">demouonetplus</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 8765bcea..9859e9ff 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -10,4 +10,6 @@
     <string name="warning_label">Warning</string>
     <string name="data_text">No login data</string>
     <string name="error_feature_text">The function you wanted to run does not work</string>
+    <string name="login_accepted">Login is successful</string>
+    <string name="login_denied">Login is failed</string>
 </resources>