diff --git a/.settings/org.eclipse.wst.common.component b/.settings/org.eclipse.wst.common.component
index 0190c48..5dbcbf7 100644
--- a/.settings/org.eclipse.wst.common.component
+++ b/.settings/org.eclipse.wst.common.component
@@ -5,6 +5,9 @@
         <wb-resource deploy-path="/WEB-INF/classes" source-path="/src/main/java"/>
         <wb-resource deploy-path="/WEB-INF/classes" source-path="/target/generated-sources/gwt"/>
         <wb-resource deploy-path="/WEB-INF/classes" source-path="/src/main/resources"/>
+        <dependent-module archiveName="ckan-util-library-1.0.0-SNAPSHOT.jar" deploy-path="/WEB-INF/lib" handle="module:/resource/ckan-util-library/ckan-util-library">
+            <dependency-type>uses</dependency-type>
+        </dependent-module>
         <property name="context-root" value="ckan-metadata-publisher-widget"/>
         <property name="java-output-path" value="/ckan-metadata-publisher-widget/target/ckan-metadata-publisher-widget-1.0.0-SNAPSHOT/WEB-INF/classes"/>
     </wb-module>
diff --git a/src/main/java/org/gcube/portlets/widgets/ckandatapublisherwidget/client/CKanMetadataPublisher.java b/src/main/java/org/gcube/portlets/widgets/ckandatapublisherwidget/client/CKanMetadataPublisher.java
index 5ad60b0..2af2234 100644
--- a/src/main/java/org/gcube/portlets/widgets/ckandatapublisherwidget/client/CKanMetadataPublisher.java
+++ b/src/main/java/org/gcube/portlets/widgets/ckandatapublisherwidget/client/CKanMetadataPublisher.java
@@ -23,7 +23,7 @@ public class CKanMetadataPublisher implements EntryPoint {
 	private void startExample() {
 		
 		String idFolderWorkspace = "d3a37eb9-1589-4c95-a9d0-c473a02d4f0f";
-		String owner = "costantino_perciante";
+		String owner = "costantino.perciante";
 		RootPanel.get("ckan-metadata-publisher-div").add(new CreateDatasetForm(owner));
 
 	}
diff --git a/src/main/java/org/gcube/portlets/widgets/ckandatapublisherwidget/client/ui/CreateDatasetForm.java b/src/main/java/org/gcube/portlets/widgets/ckandatapublisherwidget/client/ui/CreateDatasetForm.java
index 2b76eda..494ea65 100644
--- a/src/main/java/org/gcube/portlets/widgets/ckandatapublisherwidget/client/ui/CreateDatasetForm.java
+++ b/src/main/java/org/gcube/portlets/widgets/ckandatapublisherwidget/client/ui/CreateDatasetForm.java
@@ -738,6 +738,10 @@ public class CreateDatasetForm extends Composite{
 		if(checkSelectedMetaDataProfile()){
 			errorMessage = "You must select a metadata profile different frome none";
 		}
+		
+		if(organizationsListbox.getSelectedItemText() == null){
+			errorMessage = "You must select an organization in which you want to publish";
+		}
 
 		return errorMessage;
 	}
diff --git a/src/main/java/org/gcube/portlets/widgets/ckandatapublisherwidget/server/CKANPublisherServicesImpl.java b/src/main/java/org/gcube/portlets/widgets/ckandatapublisherwidget/server/CKANPublisherServicesImpl.java
index f8d6e20..5413380 100644
--- a/src/main/java/org/gcube/portlets/widgets/ckandatapublisherwidget/server/CKANPublisherServicesImpl.java
+++ b/src/main/java/org/gcube/portlets/widgets/ckandatapublisherwidget/server/CKANPublisherServicesImpl.java
@@ -178,7 +178,7 @@ public class CKANPublisherServicesImpl extends RemoteServiceServlet implements C
 	 * Retrieve the list of metadata beans
 	 * @return
 	 */
-	public List<MetaDataProfileBean> getMetadataProfilesList() {
+	private List<MetaDataProfileBean> getMetadataProfilesList() {
 
 		List<MetaDataProfileBean> beans = new ArrayList<MetaDataProfileBean>();
 
@@ -277,12 +277,11 @@ public class CKANPublisherServicesImpl extends RemoteServiceServlet implements C
 				bean.setAuthorEmail(userOwner.getEmail());
 				bean.setMaintainer(userOwner.getFullname());
 				bean.setMaintainerEmail(userOwner.getEmail());
-				bean.setOrganizationList(getUserOrganizationsList(owner));
+				bean.setOrganizationList(getUserOrganizationsList(fromOwnerToCKanOwner(owner)));
 
 				// if the request comes from the workspace
 				if(folderId != null && !folderId.isEmpty()){
 
-
 					Workspace ws = HomeLibrary
 							.getHomeManagerFactory()
 							.getHomeManager()
@@ -330,7 +329,7 @@ public class CKANPublisherServicesImpl extends RemoteServiceServlet implements C
 				bean.setAuthorEmail("costantino.perciante@isti.cnr.it");
 				bean.setMaintainer("Costantino Perciante");
 				bean.setMaintainerEmail("costantino.perciante@isti.cnr.it");
-				bean.setOrganizationList(getUserOrganizationsList(owner));
+				bean.setOrganizationList(getUserOrganizationsList(fromOwnerToCKanOwner(owner)));
 				bean.setOwnerIdentifier(owner);
 
 				if(folderId != null && !folderId.isEmpty()){
@@ -402,11 +401,11 @@ public class CKANPublisherServicesImpl extends RemoteServiceServlet implements C
 		// retrieve ckan's catalog url
 		String ckanPortalUrl = getCatalogueUrl();
 
-		// retrieve the owner identifier
+		// retrieve the owner identifier (i.e. costantino.perciante)
 		String owner = toCreate.getOwnerIdentifier();
 
 		// retrieve the api key for this user
-		String apiKey = getCKANApikeyFromUser(owner);
+		String apiKey = getCKANApikeyFromUser(fromOwnerToCKanOwner(owner));
 
 		logger.info("Trying to create the dataset described by this bean " + toCreate + " into CKAN catalog at url " + ckanPortalUrl);
 
@@ -499,7 +498,7 @@ public class CKANPublisherServicesImpl extends RemoteServiceServlet implements C
 					newResource.setUrl(item.getPublicLink(false));
 					newResource.setName(item.getName());
 					newResource.setMimetype(item.getMimeType());
-
+					newResource.setOwner(fromOwnerToCKanOwner(owner));
 					resources.add(newResource);
 				}
 
@@ -521,7 +520,7 @@ public class CKANPublisherServicesImpl extends RemoteServiceServlet implements C
 			// add source and id to the incoming bean
 			toCreate.setId(res.getId());
 			toCreate.setSource(getCatalogueUrl() + "/dataset/" + res.getName());
-			
+
 			// set visibility
 			setVisibility(toCreate, orgOwner.getId());
 
@@ -542,7 +541,16 @@ public class CKANPublisherServicesImpl extends RemoteServiceServlet implements C
 
 		return toCreate;
 	}
-	
+
+	/**
+	 * Ckan username has _ instead of . (that is, costantino_perciante)
+	 * @param owner
+	 * @return
+	 */
+	private String fromOwnerToCKanOwner(String owner){
+		return owner.replaceAll("\\.", "_");
+	}
+
 	/**
 	 * Set the dataset visibility.
 	 * @param created
@@ -550,14 +558,16 @@ public class CKANPublisherServicesImpl extends RemoteServiceServlet implements C
 	 * @throws Exception 
 	 */
 	private void setVisibility(DatasetMetadataBean created, String orgOwnerId) throws Exception{
-		
+
 		logger.debug("Setting visibility of the dataset");
 		// set its visibility (true means public, false means private)
 		boolean mustbePrivate = !created.getVisibility();
 		String currentScope = getCurrentScope();
+
 		CKanUtilsFactory.getInstance().
-		getCkanUtilsForScope(currentScope).setDatasetPrivate(mustbePrivate, orgOwnerId, created.getId(), created.getOwnerIdentifier());
-		
+		getCkanUtilsForScope(currentScope).
+		setDatasetPrivate(mustbePrivate, orgOwnerId, created.getId(), fromOwnerToCKanOwner(created.getOwnerIdentifier()));
+
 	}
 
 	/**
@@ -608,7 +618,7 @@ public class CKANPublisherServicesImpl extends RemoteServiceServlet implements C
 				String ckanPortalUrl = getCatalogueUrl();
 
 				// retrieve the api key for this user
-				String apiKey = getCKANApikeyFromUser(owner);
+				String apiKey = getCKANApikeyFromUser(fromOwnerToCKanOwner(owner));
 
 				CkanResource resource = new CkanResource(ckanPortalUrl, datasetId);
 				resource.setName(resourceBean.getName());
@@ -620,7 +630,7 @@ public class CKANPublisherServicesImpl extends RemoteServiceServlet implements C
 
 				resource.setDescription(htmlRend.toString());
 				resource.setUrl(resourceBean.getUrl());
-				resource.setOwner(owner);
+				resource.setOwner(fromOwnerToCKanOwner(owner));
 
 				// Checked client
 				CheckedCkanClient client = new CheckedCkanClient(ckanPortalUrl, apiKey);
@@ -657,7 +667,7 @@ public class CKANPublisherServicesImpl extends RemoteServiceServlet implements C
 			String ckanPortalUrl = getCatalogueUrl();
 
 			// retrieve the api key for this user
-			String apiKey = getCKANApikeyFromUser(owner);
+			String apiKey = getCKANApikeyFromUser(fromOwnerToCKanOwner(owner));
 
 			// Checked client
 			CheckedCkanClient client = new CheckedCkanClient(ckanPortalUrl, apiKey);