diff --git a/src/main/java/org/gcube/portlets/widgets/mpformbuilder/client/ConstantsMPFormBuilder.java b/src/main/java/org/gcube/portlets/widgets/mpformbuilder/client/ConstantsMPFormBuilder.java
index d354f03..22338b0 100644
--- a/src/main/java/org/gcube/portlets/widgets/mpformbuilder/client/ConstantsMPFormBuilder.java
+++ b/src/main/java/org/gcube/portlets/widgets/mpformbuilder/client/ConstantsMPFormBuilder.java
@@ -22,7 +22,9 @@ public class ConstantsMPFormBuilder {
 	
 	public static final String DATE_FORMAT = "yyyy-MM-dd";
 	
-	public static final String TIME_FORMAT = "HH:mm";
+	public static final String HOURS_MINUTES_SEPARATOR = ":";
+	
+	public static final String TIME_FORMAT = "HH"+HOURS_MINUTES_SEPARATOR+"mm";
 	
 	/**
 	 * Log.
diff --git a/src/main/java/org/gcube/portlets/widgets/mpformbuilder/client/form/generic/CreateMetadataForm.java b/src/main/java/org/gcube/portlets/widgets/mpformbuilder/client/form/generic/CreateMetadataForm.java
index 487885a..bc15c69 100644
--- a/src/main/java/org/gcube/portlets/widgets/mpformbuilder/client/form/generic/CreateMetadataForm.java
+++ b/src/main/java/org/gcube/portlets/widgets/mpformbuilder/client/form/generic/CreateMetadataForm.java
@@ -164,12 +164,6 @@ public class CreateMetadataForm extends Composite implements HasGenericFormListe
 	/** The form builder service. */
 	private final MetadataProfileFormBuilderServiceAsync formBuilderService = GWT.create(MetadataProfileFormBuilderService.class);
 
-	/** The Constant REGEX_TITLE_PRODUCT_SUBWORD. */
-	private static final String REGEX_TITLE_PRODUCT_SUBWORD = "[^a-zA-Z0-9_.-]";
-	
-	/** The Constant REGEX_MAIL. */
-	private static final String REGEX_MAIL = "\\b[\\w.%-]+@[-.\\w]+\\.[A-Za-z]{2,4}\\b";
-	
 	/** The Constant NONE_PROFILE. */
 	private static final String NONE_PROFILE = "none";
 
@@ -200,7 +194,9 @@ public class CreateMetadataForm extends Composite implements HasGenericFormListe
 
 	/** The event bus. */
 	// event bus
-	private HandlerManager eventBus = new HandlerManager(null);
+	private HandlerManager uiBus = new HandlerManager(null);
+	
+	private HandlerManager appManagerBus;
 
 	/** The custom field entries list. */
 	// added custom field entries (by the user)
@@ -248,8 +244,8 @@ public class CreateMetadataForm extends Composite implements HasGenericFormListe
 	 * @param scope the scope
 	 * @param genericResourceSecondaryType the generic resource secondary type
 	 */
-	public CreateMetadataForm(String scope, String genericResourceSecondaryType) {
-		this();
+	public CreateMetadataForm(String scope, String genericResourceSecondaryType, HandlerManager eventBus) {
+		this(eventBus);
 		this.scope = scope;
 		this.genericResourceSecondaryType = genericResourceSecondaryType;
 		showLoadingProfiles(true);
@@ -275,8 +271,8 @@ public class CreateMetadataForm extends Composite implements HasGenericFormListe
 	 *
 	 * @param profiles the profiles
 	 */
-	public CreateMetadataForm(List<MetaDataProfileBean> profiles) {
-		this();
+	public CreateMetadataForm(List<MetaDataProfileBean> profiles, HandlerManager eventBus) {
+		this(eventBus);
 		showLoadingProfiles(true);
 		createDatasetFormBody(profiles);
 		showLoadingProfiles(false);
@@ -295,9 +291,11 @@ public class CreateMetadataForm extends Composite implements HasGenericFormListe
 
 	/**
 	 * Instantiates a new creates the dataset form.
+	 * @param eventBus2 
 	 */
-	private CreateMetadataForm() {
+	private CreateMetadataForm(HandlerManager eventBus) {
 		initWidget(uiBinder.createAndBindUi(this));
+		this.appManagerBus = eventBus;
 		bind();
 		prepareInfoIcons();
 		showSelectedProfiles(false);
@@ -331,7 +329,7 @@ public class CreateMetadataForm extends Composite implements HasGenericFormListe
 	 */
 	private void bind() {
 		// when a custom field is removed, remove it from the list
-		eventBus.addHandler(DeleteCustomFieldEvent.TYPE, new DeleteCustomFieldEventHandler() {
+		uiBus.addHandler(DeleteCustomFieldEvent.TYPE, new DeleteCustomFieldEventHandler() {
 
 			@Override
 			public void onRemoveEntry(DeleteCustomFieldEvent event) {
@@ -341,7 +339,7 @@ public class CreateMetadataForm extends Composite implements HasGenericFormListe
 		});
 
 		// on close form
-		eventBus.addHandler(CloseCreationFormEvent.TYPE, new CloseCreationFormEventHandler() {
+		uiBus.addHandler(CloseCreationFormEvent.TYPE, new CloseCreationFormEventHandler() {
 			@Override
 			public void onClose(CloseCreationFormEvent event) {
 				InfoIconsLabels.closeDialogBox(popupOpenedIds);
@@ -465,7 +463,7 @@ public class CreateMetadataForm extends Composite implements HasGenericFormListe
 						
 						MetaDataField fieldWidget;
 						try {
-							fieldWidget = new MetaDataField(field, eventBus);
+							fieldWidget = new MetaDataField(field, uiBus);
 							metadataFieldsPanel.add(fieldWidget);
 							listOfMetadataFields.add(fieldWidget);
 						} catch (Exception e) {
@@ -494,7 +492,7 @@ public class CreateMetadataForm extends Composite implements HasGenericFormListe
 								
 								MetaDataField fieldWidget;
 								try {
-									fieldWidget = new MetaDataField(metadataFieldWrapper, eventBus);
+									fieldWidget = new MetaDataField(metadataFieldWrapper, uiBus);
 									cp.addField(fieldWidget);
 									listOfMetadataFields.add(fieldWidget);
 								} catch (Exception e) {
@@ -520,7 +518,7 @@ public class CreateMetadataForm extends Composite implements HasGenericFormListe
 						
 						MetaDataField fieldWidget;
 						try {
-							fieldWidget = new MetaDataField(field, eventBus);
+							fieldWidget = new MetaDataField(field, uiBus);
 							extrasCategory.addField(fieldWidget);
 							listOfMetadataFields.add(fieldWidget);
 						} catch (Exception e) {
@@ -543,7 +541,7 @@ public class CreateMetadataForm extends Composite implements HasGenericFormListe
 	@UiHandler("addCustomFieldButton")
 	void addCustomFieldEvent(ClickEvent e){
 
-		CustomFieldEntry toAdd = new CustomFieldEntry(eventBus, "", "", true);
+		CustomFieldEntry toAdd = new CustomFieldEntry(uiBus, "", "", true);
 		customFieldEntriesList.add(toAdd);
 		customFields.add(toAdd);
 
@@ -672,7 +670,17 @@ public class CreateMetadataForm extends Composite implements HasGenericFormListe
 	 * @return true, if is form data valid
 	 */
 	public boolean isFormDataValid() {
-		return areProfileDataValid() == null;
+
+		//means no error
+		if(areProfileDataValid() == null) {
+			//means created button already fired
+			if(formDataBean != null) {
+				return true;
+			}else {
+				alertOnCreate("Please press the button 'Create' to confirm your data entries", AlertType.ERROR, true);
+			}
+		}
+		return false;
 	}
 	
 	
@@ -925,9 +933,9 @@ public class CreateMetadataForm extends Composite implements HasGenericFormListe
 	 *
 	 * @return the creates the button
 	 */
-	public Button getCreateButton() {
-		return createButton;
-	}
+//	public Button getCreateButton() {
+//		return createButton;
+//	}
 	
 	
 	/**