diff --git a/src/main/java/org/gcube/portal/wssynclibrary/DoCheckSyncItem.java b/src/main/java/org/gcube/portal/wssynclibrary/DoCheckSyncItem.java
index 8585f16..6b4ee83 100644
--- a/src/main/java/org/gcube/portal/wssynclibrary/DoCheckSyncItem.java
+++ b/src/main/java/org/gcube/portal/wssynclibrary/DoCheckSyncItem.java
@@ -1,5 +1,5 @@
 /*
- * 
+ *
  */
 package org.gcube.portal.wssynclibrary;
 
@@ -14,7 +14,7 @@ import org.gcube.portal.wssynclibrary.shared.ItemNotSynched;
  * @param <T> the generic type
  */
 public interface DoCheckSyncItem<T> {
-	
+
 
 	/**
 	 * Check item synched.
diff --git a/src/main/java/org/gcube/portal/wssynclibrary/DoSyncItem.java b/src/main/java/org/gcube/portal/wssynclibrary/DoSyncItem.java
index 968c326..5e8caf7 100644
--- a/src/main/java/org/gcube/portal/wssynclibrary/DoSyncItem.java
+++ b/src/main/java/org/gcube/portal/wssynclibrary/DoSyncItem.java
@@ -22,8 +22,22 @@ public interface DoSyncItem<O> {
 	 * @throws Exception the exception
 	 */
 	O doSync(String itemId) throws ItemNotSynched, Exception;
-	
-	
+
+
+	/**
+	 * Do un sync.
+	 *
+	 * @param itemId the item id
+	 * @param deleteRemoteContent the delete remote content
+	 * @return the boolean
+	 * @throws ItemNotSynched the item not synched
+	 * @throws Exception the exception
+	 */
+	Boolean doUnSync(String itemId, boolean deleteRemoteContent)
+		throws ItemNotSynched, Exception;
+
+
+
 	/**
 	 * Gets the sync status.
 	 *
@@ -33,35 +47,36 @@ public interface DoSyncItem<O> {
 	 * @throws Exception the exception
 	 */
 	O monitorSyncStatus(String itemId) throws ItemNotSynched, Exception;
-	
-	
+
+
 	/**
 	 * Removes the sync.
 	 *
 	 * @param itemId the item id
 	 * @return true, if successful
+	 * @throws ItemNotSynched the item not synched
 	 * @throws Exception the exception
 	 */
 	Boolean removeSync(String itemId) throws ItemNotSynched, Exception;
-	
-	
+
+
 
 	/**
 	 * Stop sync.
 	 *
 	 * @param itemId the item id
 	 * @return true, if successful
+	 * @throws ItemNotSynched the item not synched
 	 * @throws Exception the exception
 	 */
 	Boolean stopSync(String itemId) throws ItemNotSynched, Exception;
-	
-	
-	
+
+
+
 	/**
 	 * Register callback for id.
 	 *
 	 * @param itemId the item id
-	 * @throws ItemNotSynched the item not synched
 	 * @throws Exception the exception
 	 */
 	void registerCallbackForId(String itemId) throws Exception;
diff --git a/src/main/java/org/gcube/portal/wssynclibrary/thredds/WorkspaceThreddsSynchronize.java b/src/main/java/org/gcube/portal/wssynclibrary/thredds/WorkspaceThreddsSynchronize.java
index 24cfb5c..6540877 100644
--- a/src/main/java/org/gcube/portal/wssynclibrary/thredds/WorkspaceThreddsSynchronize.java
+++ b/src/main/java/org/gcube/portal/wssynclibrary/thredds/WorkspaceThreddsSynchronize.java
@@ -83,9 +83,6 @@ public class WorkspaceThreddsSynchronize implements WorkspaceThreddsSynchronized
 		return instance;
 	}
 
-	//setSynchronizedFolder(config, folder.getId());
-
-
 	/* (non-Javadoc)
 	 * @see org.gcube.portal.wssynclibrary.WorkspaceSynchronizedRepository#isItemSynchronized(java.lang.String)
 	 */
@@ -111,12 +108,6 @@ public class WorkspaceThreddsSynchronize implements WorkspaceThreddsSynchronized
 			logger.warn("Workspace locked, going to force unlock..");
 			throw new WorkspaceFolderLocked(itemId, "The folder id: "+itemId +" is currently locked. Another sync process is in progress");
 			//engine.forceUnlock(itemId);
-			//System.out.println("Workspace locked, going to force unlock.."); // MAINLY FOR TEST PURPOSES, OR WHEN SOMETHIGN GOES WRONG.. USE CAUTIOUSLY
-			//engine.forceUnlock(folder.getId());
-
-			//TODO???
-			//return null;
-			//???
 		} catch (WorkspaceInteractionException | InternalException e) {
 			logger.error("Error: ",e);
 			if(e instanceof WorkspaceInteractionException)
@@ -171,7 +162,6 @@ public class WorkspaceThreddsSynchronize implements WorkspaceThreddsSynchronized
 		try {
 			// INVOKE SYNCHRONIZATION ON FOLDER
 			ProcessDescriptor descriptor = engine.doSync(itemId);
-
 			ThSyncStatus synStatus = mapCallBack.get(itemId);
 
 			if(synStatus==null) {
@@ -196,8 +186,6 @@ public class WorkspaceThreddsSynchronize implements WorkspaceThreddsSynchronized
 			throw new Exception("Sorry, an error occurred server side  during syncronization for the itemId: "+itemId);
 		}
 
-
-
 	}
 
 
@@ -207,13 +195,10 @@ public class WorkspaceThreddsSynchronize implements WorkspaceThreddsSynchronized
 	@Override
 	public ThSyncStatus monitorSyncStatus(String itemId) throws ItemNotSynched, Exception {
 
-
 		try {
 
 			ThSyncStatus synStatus = mapCallBack.get(itemId);
-
 			if(synStatus==null) {
-
 				try{
 
 					registerCallbackForId(itemId);
@@ -318,7 +303,7 @@ public class WorkspaceThreddsSynchronize implements WorkspaceThreddsSynchronized
 	public Sync_Status getSynchedStatusFromItemProperty(String folderId, String username) throws ItemNotSynched, Exception{
 
 		if(folderId==null)
-			throw new Exception("Invalid pareter itemId is null");
+			throw new Exception("Invalid parameter itemId is null");
 
 		String scope = ScopeProvider.instance.get();
 		if(scope == null || scope.isEmpty())
@@ -444,4 +429,23 @@ public class WorkspaceThreddsSynchronize implements WorkspaceThreddsSynchronized
 		logger.debug("Returning sorted Catalogue list with: "+listCtlgs.size() +" item/s");
 		return listCtlgs;
 	}
+
+
+	/* (non-Javadoc)
+	 * @see org.gcube.portal.wssynclibrary.DoSyncItem#doUnSync(java.lang.String)
+	 */
+	@Override
+	public Boolean doUnSync(String itemId, boolean deleteRemoteContent) throws Exception {
+
+		if(itemId==null)
+			throw new Exception("Invalid parameter: itemId is null");
+
+		try{
+			engine.unsetSynchronizedFolder(itemId, deleteRemoteContent);
+			return true;
+		}catch(Exception e){
+			logger.error("Unset Syncronized folder exception: ",e);
+			throw new Exception("An error occurred on deleting configuration to the item id: "+itemId, e);
+		}
+	}
 }