diff --git a/src/main/java/org/gcube/portal/databook/server/DBCassandraAstyanaxImpl.java b/src/main/java/org/gcube/portal/databook/server/DBCassandraAstyanaxImpl.java
index a77b452..8b41ceb 100644
--- a/src/main/java/org/gcube/portal/databook/server/DBCassandraAstyanaxImpl.java
+++ b/src/main/java/org/gcube/portal/databook/server/DBCassandraAstyanaxImpl.java
@@ -2419,27 +2419,6 @@ public final class DBCassandraAstyanaxImpl implements DatabookStore {
 		else if (type.compareTo("JOB_COMPLETED_OK") == 0) {
 			return NotificationType.JOB_COMPLETED_OK;
 		}
-		else if (type.compareTo("DOCUMENT_WORKFLOW_EDIT") == 0) {
-			return NotificationType.DOCUMENT_WORKFLOW_EDIT;
-		}
-		else if (type.compareTo("DOCUMENT_WORKFLOW_VIEW") == 0) {
-			return NotificationType.DOCUMENT_WORKFLOW_VIEW;
-		}
-		else if (type.compareTo("DOCUMENT_WORKFLOW_FORWARD_STEP_COMPLETED_OWNER") == 0) {
-			return NotificationType.DOCUMENT_WORKFLOW_FORWARD_STEP_COMPLETED_OWNER;
-		}
-		else if (type.compareTo("DOCUMENT_WORKFLOW_STEP_FORWARD_PEER") == 0) {
-			return NotificationType.DOCUMENT_WORKFLOW_STEP_FORWARD_PEER;
-		}
-		else if (type.compareTo("DOCUMENT_WORKFLOW_STEP_REQUEST_TASK") == 0) {
-			return NotificationType.DOCUMENT_WORKFLOW_STEP_REQUEST_TASK;
-		}
-		else if (type.compareTo("DOCUMENT_WORKFLOW_USER_FORWARD_TO_OWNER") == 0) {
-			return NotificationType.DOCUMENT_WORKFLOW_USER_FORWARD_TO_OWNER;
-		}
-		else if (type.compareTo("DOCUMENT_WORKFLOW_FIRST_STEP_REQUEST_INVOLVMENT") == 0) {
-			return NotificationType.DOCUMENT_WORKFLOW_FIRST_STEP_REQUEST_INVOLVMENT;
-		}	
 		else if (type.compareTo("TDM_TAB_RESOURCE_SHARE") == 0) {
 			return NotificationType.TDM_TAB_RESOURCE_SHARE;
 		}	
diff --git a/src/main/java/org/gcube/portal/databook/shared/NotificationType.java b/src/main/java/org/gcube/portal/databook/shared/NotificationType.java
index 7f59ba8..df1e8dd 100644
--- a/src/main/java/org/gcube/portal/databook/shared/NotificationType.java
+++ b/src/main/java/org/gcube/portal/databook/shared/NotificationType.java
@@ -113,40 +113,6 @@ public enum NotificationType {
 	 * use to notify a user he got a job completed not ok
 	 */
 	JOB_COMPLETED_NOK,
-	/**
-	 * use to notify a document workflow owner that someone 
-	 * has edited a document involved in a worflow he created
-	 */
-	DOCUMENT_WORKFLOW_EDIT,
-	/**
-	 * use to notify a document workflow owner that someone 
-	 * has viewed a document involved in a worflow he created
-	 */
-	DOCUMENT_WORKFLOW_VIEW,
-	/**
-	 * use to notify a document workflow user (user that in the same document workflow) 
-	 * that forwarded to a step where he is requested to do a task
-	 */
-	DOCUMENT_WORKFLOW_STEP_REQUEST_TASK,
-	/**
-	 * use to notify a document workflow user that he was involved into a new Document Workflow
-	 * and he is requested to do a task
-	 */
-	DOCUMENT_WORKFLOW_FIRST_STEP_REQUEST_INVOLVMENT,
-	/**
-	 * use to notify a document workflow owner that a user performed a forward action to another step a document worflow he created
-	 */
-	DOCUMENT_WORKFLOW_USER_FORWARD_TO_OWNER,
-	/**
-	 * use to notify a document workflow owner that someone 
-	 * forwarded and the workflow moved to another step a document worflow he created
-	 */
-	DOCUMENT_WORKFLOW_FORWARD_STEP_COMPLETED_OWNER,
-	/**
-	 * use to notify a document workflow peer (user that in the same step has your same role) 
-	 * that someone performed a forward action to another step in a document worflow he is involved into
-	 */
-	DOCUMENT_WORKFLOW_STEP_FORWARD_PEER,
 	/**
 	 * generic notification
 	 */