diff --git a/src/main/java/org/gcube/social_networking/socialnetworking/model/beans/workspace/AddedItemEvent.java b/src/main/java/org/gcube/social_networking/socialnetworking/model/beans/workspace/AddedItemEvent.java
index 3a8c004..b1a3f34 100644
--- a/src/main/java/org/gcube/social_networking/socialnetworking/model/beans/workspace/AddedItemEvent.java
+++ b/src/main/java/org/gcube/social_networking/socialnetworking/model/beans/workspace/AddedItemEvent.java
@@ -1,5 +1,7 @@
 package org.gcube.social_networking.socialnetworking.model.beans.workspace;
 
+import java.util.Arrays;
+
 import javax.validation.constraints.NotNull;
 
 import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
@@ -57,6 +59,10 @@ public class AddedItemEvent extends WorkspaceEvent {
 	}
 
 
-
+	@Override
+	public String toString() {
+		return "AddedItemEvent [item=" + item + ", TYPE=" + TYPE + ", idsToNotify=" + Arrays.toString(idsToNotify)
+				+ ", idsAsGroup=" + idsAsGroup + "]";
+	}
 
 }
diff --git a/src/main/java/org/gcube/social_networking/socialnetworking/model/beans/workspace/DeletedItemEvent.java b/src/main/java/org/gcube/social_networking/socialnetworking/model/beans/workspace/DeletedItemEvent.java
index 3162b63..f6ee3f8 100644
--- a/src/main/java/org/gcube/social_networking/socialnetworking/model/beans/workspace/DeletedItemEvent.java
+++ b/src/main/java/org/gcube/social_networking/socialnetworking/model/beans/workspace/DeletedItemEvent.java
@@ -1,5 +1,7 @@
 package org.gcube.social_networking.socialnetworking.model.beans.workspace;
 
+import java.util.Arrays;
+
 import javax.validation.constraints.NotNull;
 
 import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
@@ -11,53 +13,71 @@ import com.fasterxml.jackson.annotation.JsonTypeName;
 public class DeletedItemEvent extends WorkspaceEvent {
 	private static final WorkspaceEventType TYPE = WorkspaceEventType.ITEM_DELETE;
 
-
-	@JsonProperty("fileItem")
-	@NotNull(message="fileItem cannot be missing")
-	private FileItemBean item;
+	@JsonProperty("itemName")
+	@NotNull
+	private String itemName; 	
+	
+	@JsonProperty("folderItem")
+	@NotNull(message="folderItem cannot be missing")
+	private FolderBean folder;
 
 	public DeletedItemEvent() {
 		super(TYPE);
 		// TODO Auto-generated constructor stub
 	}
-
-
 	/**
 	 * 
 	 * @param idsToNotify usernames or contexts
 	 * @param idsAsGroup true if idsToNotify are groups (members of contexts)
-	 * @param item
+	 * @param itemName the deleted item name
+	 * @param FolderBean the folder
 	 */
-	public DeletedItemEvent(String[] idsToNotify, boolean idsAsGroup, FileItemBean item) {
+	public DeletedItemEvent(String[] idsToNotify, boolean idsAsGroup, String itemName, FolderBean folder) {
 		super(TYPE);
 		this.idsToNotify = idsToNotify;
 		this.idsAsGroup = idsAsGroup;
-		this.item = item;
+		this.itemName = itemName;
+		this.folder = folder;
 	}
 
 
 	/**
 	 * 
 	 * @param idsToNotify usernames 
-	 * @param item
+	 * @param itemName the deleted item name
+	 * @param FolderBean the folder
 	 */
-	public DeletedItemEvent(String[] idsToNotify, FileItemBean item) {
+	public DeletedItemEvent(String[] idsToNotify, String itemName, FolderBean folder) {
 		super(TYPE);
 		this.idsToNotify = idsToNotify;
-		this.item = item;
+		this.itemName = itemName;
+		this.folder = folder;
 	}
 
 
-
-	public FileItemBean getItem() {
-		return item;
-	}
-
-	public void setItem(FileItemBean item) {
-		this.item = item;
+	public String getItemName() {
+		return itemName;
 	}
 
 
+	public void setItemName(String itemName) {
+		this.itemName = itemName;
+	}
 
 
+	public FolderBean getFolder() {
+		return folder;
+	}
+
+
+	public void setFolder(FolderBean folder) {
+		this.folder = folder;
+	}
+
+
+	@Override
+	public String toString() {
+		return "DeletedItemEvent [itemName=" + itemName + ", folder=" + folder + ", TYPE=" + TYPE + ", idsToNotify="
+				+ Arrays.toString(idsToNotify) + ", idsAsGroup=" + idsAsGroup + "]";
+	}
 }
diff --git a/src/main/java/org/gcube/social_networking/socialnetworking/model/beans/workspace/UpdatedItemEvent.java b/src/main/java/org/gcube/social_networking/socialnetworking/model/beans/workspace/UpdatedItemEvent.java
new file mode 100644
index 0000000..08d5f24
--- /dev/null
+++ b/src/main/java/org/gcube/social_networking/socialnetworking/model/beans/workspace/UpdatedItemEvent.java
@@ -0,0 +1,67 @@
+package org.gcube.social_networking.socialnetworking.model.beans.workspace;
+
+import java.util.Arrays;
+
+import javax.validation.constraints.NotNull;
+
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.annotation.JsonTypeName;
+
+@JsonIgnoreProperties(ignoreUnknown=true)
+@JsonTypeName("ITEM_UPDATE")
+public class UpdatedItemEvent extends WorkspaceEvent {
+	private static final WorkspaceEventType TYPE = WorkspaceEventType.ITEM_UPDATE;
+
+
+	@JsonProperty("fileItem")
+	@NotNull(message="fileItem cannot be missing")
+	private FileItemBean item;
+
+	public UpdatedItemEvent() {
+		super(TYPE);
+	}
+
+
+	/**
+	 * 
+	 * @param idsToNotify usernames or contexts
+	 * @param idsAsGroup true if idsToNotify are groups (members of contexts)
+	 * @param item
+	 */
+	public UpdatedItemEvent(String[] idsToNotify, boolean idsAsGroup, FileItemBean item) {
+		super(TYPE);
+		this.idsToNotify = idsToNotify;
+		this.idsAsGroup = idsAsGroup;
+		this.item = item;
+	}
+
+
+	/**
+	 * 
+	 * @param idsToNotify usernames 
+	 * @param item
+	 */
+	public UpdatedItemEvent(String[] idsToNotify, FileItemBean item) {
+		super(TYPE);
+		this.idsToNotify = idsToNotify;
+		this.item = item;
+	}
+
+
+
+	public FileItemBean getItem() {
+		return item;
+	}
+
+	public void setItem(FileItemBean item) {
+		this.item = item;
+	}
+
+
+	@Override
+	public String toString() {
+		return "UpdatedItemEvent [item=" + item + ", TYPE=" + TYPE + ", idsToNotify=" + Arrays.toString(idsToNotify)
+				+ ", idsAsGroup=" + idsAsGroup + "]";
+	}
+}
diff --git a/src/main/java/org/gcube/social_networking/socialnetworking/model/beans/workspace/WorkspaceEvent.java b/src/main/java/org/gcube/social_networking/socialnetworking/model/beans/workspace/WorkspaceEvent.java
index 1838002..5a45862 100644
--- a/src/main/java/org/gcube/social_networking/socialnetworking/model/beans/workspace/WorkspaceEvent.java
+++ b/src/main/java/org/gcube/social_networking/socialnetworking/model/beans/workspace/WorkspaceEvent.java
@@ -19,6 +19,7 @@ include = As.PROPERTY, property = "type") @JsonSubTypes({
 	@JsonSubTypes.Type(value = UnsharedFolderEvent.class, name = "FOLDER_UNSHARE"),
 	@JsonSubTypes.Type(value = RenamedFolderEvent.class, name = "FOLDER_RENAME"),
 	@JsonSubTypes.Type(value = AddedItemEvent.class, name = "ITEM_NEW"),
+	@JsonSubTypes.Type(value = UpdatedItemEvent.class, name = "ITEM_UPDATE"),
 	@JsonSubTypes.Type(value = DeletedItemEvent.class, name = "ITEM_DELETE"),
 	@JsonSubTypes.Type(value = FolderAddedUserEvent.class, name = "FOLDER_ADDEDUSER"),
 	@JsonSubTypes.Type(value = FolderRemovedUserEvent.class, name = "FOLDER_REMOVEDUSER")		
diff --git a/src/main/java/org/gcube/social_networking/socialnetworking/model/beans/workspace/WorkspaceEventType.java b/src/main/java/org/gcube/social_networking/socialnetworking/model/beans/workspace/WorkspaceEventType.java
index eacf48a..4ef2818 100644
--- a/src/main/java/org/gcube/social_networking/socialnetworking/model/beans/workspace/WorkspaceEventType.java
+++ b/src/main/java/org/gcube/social_networking/socialnetworking/model/beans/workspace/WorkspaceEventType.java
@@ -10,6 +10,10 @@ public enum WorkspaceEventType {
 	 * use to notify a user she got a workspace item deleted from one of his workspace shared folder
 	 */
 	ITEM_DELETE(DeletedItemEvent.class),
+	/**
+	 * use to notify a user he got a workspace item updated from one of his workspace shared folder
+	 */
+	ITEM_UPDATE(UpdatedItemEvent.class),
 	/**
 	 * use to notify a user he got a workspace folder shared
 	 */