diff --git a/src/main/java/org/gcube/social_networking/socialnetworking/model/beans/workspace/FolderAdminDowngradeEvent.java b/src/main/java/org/gcube/social_networking/socialnetworking/model/beans/workspace/FolderAdminDowngradeEvent.java
new file mode 100644
index 0000000..f156b9e
--- /dev/null
+++ b/src/main/java/org/gcube/social_networking/socialnetworking/model/beans/workspace/FolderAdminDowngradeEvent.java
@@ -0,0 +1,62 @@
+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("FOLDER_ADMIN_DOWNGRADE")
+public class FolderAdminDowngradeEvent extends WorkspaceEvent {
+	private static final WorkspaceEventType TYPE = WorkspaceEventType.FOLDER_ADMIN_DOWNGRADE;
+	@JsonProperty("folderItem")
+	@NotNull(message="folderItem cannot be missing")
+	private FolderBean folder;
+	
+	public FolderAdminDowngradeEvent() {
+		super(TYPE);
+	}
+	/**
+	 * 
+	 * @param idsToNotify usernames
+	 * @param idsAsGroup true if idsToNotify are groups (members of contexts)
+	 * @param FolderBean the folder
+	 */
+	public FolderAdminDowngradeEvent(String[] idsToNotify, boolean idsAsGroup, FolderBean folder) {
+		super(TYPE);
+		this.idsToNotify = idsToNotify;
+		this.idsAsGroup = idsAsGroup;
+		this.folder = folder;
+	}
+	/**
+	 * 
+	 * @param idsToNotify usernames
+	 * @param FolderBean the folder
+	 */
+	public FolderAdminDowngradeEvent(String[] idsToNotify, FolderBean folder) {
+		super(TYPE);
+		this.idsToNotify = idsToNotify;
+		this.folder = folder;
+	}
+
+
+
+	public FolderBean getFolder() {
+		return folder;
+	}
+
+	public void setFolder(FolderBean folder) {
+		this.folder = folder;
+	}
+	@Override
+	public String toString() {
+		return "FOLDER_ADMIN_DOWNGRADE [folder=" + folder + ", TYPE=" + TYPE + ", idsToNotify="
+				+ Arrays.toString(idsToNotify) + ", idsAsGroup=" + idsAsGroup + "]";
+	}
+
+
+}
diff --git a/src/main/java/org/gcube/social_networking/socialnetworking/model/beans/workspace/FolderAdminUpgradeEvent.java b/src/main/java/org/gcube/social_networking/socialnetworking/model/beans/workspace/FolderAdminUpgradeEvent.java
new file mode 100644
index 0000000..c195d66
--- /dev/null
+++ b/src/main/java/org/gcube/social_networking/socialnetworking/model/beans/workspace/FolderAdminUpgradeEvent.java
@@ -0,0 +1,62 @@
+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("FOLDER_ADMIN_UPGRADE")
+public class FolderAdminUpgradeEvent extends WorkspaceEvent {
+	private static final WorkspaceEventType TYPE = WorkspaceEventType.FOLDER_ADMIN_UPGRADE;
+	@JsonProperty("folderItem")
+	@NotNull(message="folderItem cannot be missing")
+	private FolderBean folder;
+	
+	public FolderAdminUpgradeEvent() {
+		super(TYPE);
+	}
+	/**
+	 * 
+	 * @param idsToNotify usernames
+	 * @param idsAsGroup true if idsToNotify are groups (members of contexts)
+	 * @param FolderBean the folder
+	 */
+	public FolderAdminUpgradeEvent(String[] idsToNotify, boolean idsAsGroup, FolderBean folder) {
+		super(TYPE);
+		this.idsToNotify = idsToNotify;
+		this.idsAsGroup = idsAsGroup;
+		this.folder = folder;
+	}
+	/**
+	 * 
+	 * @param idsToNotify usernames
+	 * @param FolderBean the folder
+	 */
+	public FolderAdminUpgradeEvent(String[] idsToNotify, FolderBean folder) {
+		super(TYPE);
+		this.idsToNotify = idsToNotify;
+		this.folder = folder;
+	}
+
+
+
+	public FolderBean getFolder() {
+		return folder;
+	}
+
+	public void setFolder(FolderBean folder) {
+		this.folder = folder;
+	}
+	@Override
+	public String toString() {
+		return "FolderAdminUpgradeEvent [folder=" + folder + ", 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 5a45862..e979ae6 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
@@ -22,7 +22,9 @@ include = As.PROPERTY, property = "type") @JsonSubTypes({
 	@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")		
+	@JsonSubTypes.Type(value = FolderRemovedUserEvent.class, name = "FOLDER_REMOVEDUSER"),		
+	@JsonSubTypes.Type(value = FolderAdminUpgradeEvent.class, name = "FOLDER_ADMIN_UPGRADE"),
+	@JsonSubTypes.Type(value = FolderAdminDowngradeEvent.class, name = "FOLDER_ADMIN_DOWNGRADE")	
 })
 public abstract class WorkspaceEvent {
 	protected final WorkspaceEventType TYPE;
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 4ef2818..301be7c 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
@@ -26,15 +26,25 @@ public enum WorkspaceEventType {
 	 * use to notify a workspace folder renamed
 	 */
 	FOLDER_RENAME(RenamedFolderEvent.class),
+	/**
+	 * use to notify a user that he got upgraded to administrator of a shared folder
+	 */
+	FOLDER_ADMIN_UPGRADE(FolderAdminUpgradeEvent.class),
+	/**
+	 * use to notify a user that he got downgraded from being administrator of a shared folder
+	 */
+	FOLDER_ADMIN_DOWNGRADE(FolderAdminDowngradeEvent.class),
 	/**
 	 * use to notify that new user(s) were added in on of his workspace shared folder
 	 */
 	FOLDER_ADDEDUSER(FolderAddedUserEvent.class),
 	/**
-	 * use to notify user(s) that existing user(s) were removed from one of her workspace shared folder
+	 * use to notify user(s) that they were removed from a workspace shared folder
 	 */
 	FOLDER_REMOVEDUSER(FolderRemovedUserEvent.class);
 	
+
+	
 	
 	
 	Class<? extends WorkspaceEvent> beanClass;