diff --git a/src/main/java/envoy/client/ui/controller/GroupCreationScene.java b/src/main/java/envoy/client/ui/controller/GroupCreationScene.java
index ea4a58e..f4311aa 100644
--- a/src/main/java/envoy/client/ui/controller/GroupCreationScene.java
+++ b/src/main/java/envoy/client/ui/controller/GroupCreationScene.java
@@ -5,15 +5,16 @@ import java.util.stream.Collectors;
 import javafx.application.Platform;
 import javafx.fxml.FXML;
 import javafx.scene.control.*;
+import javafx.scene.control.Alert.AlertType;
 
 import envoy.client.data.LocalDB;
 import envoy.client.event.SendEvent;
 import envoy.client.ui.ContactListCell;
 import envoy.client.ui.SceneContext;
 import envoy.data.Contact;
-import envoy.data.User;
 import envoy.event.EventBus;
 import envoy.event.GroupCreation;
+import envoy.util.Bounds;
 
 /**
  * Project: <strong>envoy-client</strong><br>
@@ -25,9 +26,6 @@ import envoy.event.GroupCreation;
  */
 public class GroupCreationScene {
 
-	@FXML
-	private Button backButton;
-
 	@FXML
 	private Button createButton;
 
@@ -39,7 +37,7 @@ public class GroupCreationScene {
 
 	private SceneContext sceneContext;
 
-	private static EventBus eventBus = EventBus.getInstance();
+	private static final EventBus eventBus = EventBus.getInstance();
 
 	@FXML
 	private void initialize() {
@@ -56,22 +54,36 @@ public class GroupCreationScene {
 	public void initializeData(SceneContext sceneContext, LocalDB localDB) {
 		this.sceneContext = sceneContext;
 		Platform.runLater(() -> contactList.getItems()
-			.addAll(localDB.getUsers()
-				.values()
-				.stream()
-				.filter(c -> c instanceof User && c.getID() != localDB.getUser().getID())
-				.collect(Collectors.toList())));
+			.addAll(localDB.getUsers().values().stream().filter(c -> c.getID() != localDB.getUser().getID()).collect(Collectors.toList())));
 	}
 
 	/**
-	 * Sends a {@link GroupCreation} to the server.
+	 * Enables the {@code createButton} if at least one contact is selected.
+	 * 
+	 * @since Envoy Client v0.1-beta
+	 */
+	@FXML
+	private void contactListClicked() { createButton.setDisable(contactList.getSelectionModel().isEmpty()); }
+
+	/**
+	 * Sends a {@link GroupCreation} to the server and closes this scene.
+	 * <p>
+	 * If the given group name is not valid, an error is displayed instead.
 	 *
 	 * @since Envoy Client v0.1-beta
 	 */
 	@FXML
-	private void sendGroupObject() {
-		eventBus.dispatch(new SendEvent(new GroupCreation(groupNameBar.getText(),
-				contactList.getSelectionModel().getSelectedItems().stream().map(Contact::getID).collect(Collectors.toSet()))));
+	private void createButtonClicked() {
+		final var name = groupNameBar.getText();
+		if (!Bounds.isValidContactName(name)) {
+			new Alert(AlertType.ERROR, "The entered group name is not valid (" + Bounds.CONTACT_NAME_PATTERN + ")").showAndWait();
+			groupNameBar.clear();
+		} else {
+			eventBus.dispatch(new SendEvent(new GroupCreation(name,
+					contactList.getSelectionModel().getSelectedItems().stream().map(Contact::getID).collect(Collectors.toSet()))));
+			new Alert(AlertType.INFORMATION, String.format("Group '%s' successfully created.", name)).showAndWait();
+			sceneContext.pop();
+		}
 	}
 
 	@FXML
diff --git a/src/main/java/envoy/client/ui/controller/LoginScene.java b/src/main/java/envoy/client/ui/controller/LoginScene.java
index 5c6fab9..01e456d 100644
--- a/src/main/java/envoy/client/ui/controller/LoginScene.java
+++ b/src/main/java/envoy/client/ui/controller/LoginScene.java
@@ -117,7 +117,7 @@ public final class LoginScene {
 			new Alert(AlertType.ERROR, "The entered password is unequal to the repeated one").showAndWait();
 			repeatPasswordField.clear();
 		} else if (!Bounds.isValidContactName(userTextField.getText())) {
-			new Alert(AlertType.ERROR, "The entered user name is not valid (" + Bounds.CONTACT_NAME_PATTERN.toString() + ")").showAndWait();
+			new Alert(AlertType.ERROR, "The entered user name is not valid (" + Bounds.CONTACT_NAME_PATTERN + ")").showAndWait();
 			userTextField.clear();
 		} else
 			performHandshake(
diff --git a/src/main/resources/fxml/GroupCreationScene.fxml b/src/main/resources/fxml/GroupCreationScene.fxml
index 8e36d11..9fbdc92 100644
--- a/src/main/resources/fxml/GroupCreationScene.fxml
+++ b/src/main/resources/fxml/GroupCreationScene.fxml
@@ -38,21 +38,21 @@
             <Insets bottom="5.0" left="5.0" right="5.0" top="5.0" />
          </padding>
       </Label>
-      <ListView fx:id="contactList" prefHeight="314.0" prefWidth="600.0">
+      <ListView fx:id="contactList" onMouseClicked="#contactListClicked" prefHeight="314.0" prefWidth="600.0">
          <VBox.margin>
             <Insets bottom="5.0" left="10.0" right="10.0" top="5.0" />
          </VBox.margin>
          <padding>
             <Insets bottom="5.0" left="5.0" right="5.0" top="5.0" />
          </padding></ListView>
-      <Button mnemonicParsing="false" onAction="#sendGroupObject" text="Create">
+      <Button fx:id="createButton" defaultButton="true" disable="true" mnemonicParsing="false" onAction="#createButtonClicked" text="Create">
          <VBox.margin>
             <Insets bottom="5.0" left="5.0" right="5.0" top="5.0" />
          </VBox.margin>
          <padding>
             <Insets bottom="5.0" left="5.0" right="5.0" top="5.0" />
          </padding></Button>
-      <Button fx:id="backButton" cancelButton="true" mnemonicParsing="true" onAction="#backButtonClicked" text="_Back">
+      <Button cancelButton="true" mnemonicParsing="true" onAction="#backButtonClicked" text="_Back">
          <VBox.margin>
             <Insets bottom="5.0" left="5.0" right="5.0" top="5.0" />
          </VBox.margin>