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 98b8cdc..6367066 100644
--- a/src/main/java/org/gcube/portal/databook/server/DBCassandraAstyanaxImpl.java
+++ b/src/main/java/org/gcube/portal/databook/server/DBCassandraAstyanaxImpl.java
@@ -1715,7 +1715,16 @@ public final class DBCassandraAstyanaxImpl implements DatabookStore {
 		}
 		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;
+		}	
+		else if (type.compareTo("TDM_RULE_SHARE") == 0) {
+			return NotificationType.TDM_RULE_SHARE;
+		}	
+		else if (type.compareTo("TDM_RULE_SHARE") == 0) {
+			return NotificationType.TDM_TEMPLATE_SHARE;
+		}	
 		else if (type.compareTo("GENERIC") == 0) {
 			return NotificationType.GENERIC;
 		}