diff --git a/src/main/java/org/gcube/portlets/user/td/tablewidget/client/ChangeTableTypePanel.java b/src/main/java/org/gcube/portlets/user/td/tablewidget/client/ChangeTableTypePanel.java
index c872952..dd964ed 100644
--- a/src/main/java/org/gcube/portlets/user/td/tablewidget/client/ChangeTableTypePanel.java
+++ b/src/main/java/org/gcube/portlets/user/td/tablewidget/client/ChangeTableTypePanel.java
@@ -18,6 +18,7 @@ import org.gcube.portlets.user.td.widgetcommonevent.client.event.SessionExpiredE
 import org.gcube.portlets.user.td.widgetcommonevent.client.type.ChangeTableRequestType;
 import org.gcube.portlets.user.td.widgetcommonevent.client.type.ChangeTableWhy;
 import org.gcube.portlets.user.td.widgetcommonevent.client.type.SessionExpiredType;
+import org.gcube.portlets.user.td.widgetcommonevent.shared.OperationResult;
 import org.gcube.portlets.user.td.widgetcommonevent.shared.TRId;
 
 import com.allen_sauer.gwt.log.client.Log;
@@ -232,10 +233,10 @@ public class ChangeTableTypePanel extends FramedPanel implements
 	}
 
 	@Override
-	public void operationComplete(TRId trId) {
+	public void operationComplete(OperationResult operationResult) {
 		ChangeTableWhy why = ChangeTableWhy.TABLEUPDATED;
 		ChangeTableRequestEvent changeTableRequestEvent = new ChangeTableRequestEvent(
-				ChangeTableRequestType.CHANGETABLETYPE, trId, why);
+				ChangeTableRequestType.CHANGETABLETYPE, operationResult.getTrId(), why);
 		eventBus.fireEvent(changeTableRequestEvent);
 		close();
 	}
@@ -248,10 +249,10 @@ public class ChangeTableTypePanel extends FramedPanel implements
 	}
 
 	@Override
-	public void operationStopped(TRId trId, String reason, String details) {
+	public void operationStopped(OperationResult operationResult, String reason, String details) {
 		ChangeTableWhy why = ChangeTableWhy.TABLECURATION;
 		ChangeTableRequestEvent changeTableRequestEvent = new ChangeTableRequestEvent(
-				ChangeTableRequestType.CHANGETABLETYPE, trId, why);
+				ChangeTableRequestType.CHANGETABLETYPE, operationResult.getTrId(), why);
 		eventBus.fireEvent(changeTableRequestEvent);
 		close();
 
diff --git a/src/main/java/org/gcube/portlets/user/td/tablewidget/client/CloneTabularResource.java b/src/main/java/org/gcube/portlets/user/td/tablewidget/client/CloneTabularResource.java
index f6928c7..de991f2 100644
--- a/src/main/java/org/gcube/portlets/user/td/tablewidget/client/CloneTabularResource.java
+++ b/src/main/java/org/gcube/portlets/user/td/tablewidget/client/CloneTabularResource.java
@@ -12,6 +12,7 @@ import org.gcube.portlets.user.td.widgetcommonevent.client.event.SessionExpiredE
 import org.gcube.portlets.user.td.widgetcommonevent.client.type.ChangeTableRequestType;
 import org.gcube.portlets.user.td.widgetcommonevent.client.type.ChangeTableWhy;
 import org.gcube.portlets.user.td.widgetcommonevent.client.type.SessionExpiredType;
+import org.gcube.portlets.user.td.widgetcommonevent.shared.OperationResult;
 import org.gcube.portlets.user.td.widgetcommonevent.shared.TRId;
 
 import com.allen_sauer.gwt.log.client.Log;
@@ -81,10 +82,10 @@ public class CloneTabularResource implements MonitorDialogListener {
 	}
 
 	@Override
-	public void operationComplete(TRId trId) {
+	public void operationComplete(OperationResult operationResult) {
 		ChangeTableWhy why = ChangeTableWhy.TABLECLONED;
 		ChangeTableRequestEvent changeTableRequestEvent = new ChangeTableRequestEvent(
-				ChangeTableRequestType.CLONETABULARRESOURCE, trId, why);
+				ChangeTableRequestType.CLONETABULARRESOURCE, operationResult.getTrId(), why);
 		eventBus.fireEvent(changeTableRequestEvent);
 		close();
 	}
@@ -97,10 +98,10 @@ public class CloneTabularResource implements MonitorDialogListener {
 	}
 
 	@Override
-	public void operationStopped(TRId trId, String reason, String details) {
+	public void operationStopped(OperationResult operationResult, String reason, String details) {
 		ChangeTableWhy why = ChangeTableWhy.TABLECURATION;
 		ChangeTableRequestEvent changeTableRequestEvent = new ChangeTableRequestEvent(
-				ChangeTableRequestType.CLONETABULARRESOURCE, trId, why);
+				ChangeTableRequestType.CLONETABULARRESOURCE, operationResult.getTrId(), why);
 		eventBus.fireEvent(changeTableRequestEvent);
 		close();
 
diff --git a/src/main/java/org/gcube/portlets/user/td/tablewidget/client/history/HistoryDiscard.java b/src/main/java/org/gcube/portlets/user/td/tablewidget/client/history/HistoryDiscard.java
index 6e196da..b071021 100644
--- a/src/main/java/org/gcube/portlets/user/td/tablewidget/client/history/HistoryDiscard.java
+++ b/src/main/java/org/gcube/portlets/user/td/tablewidget/client/history/HistoryDiscard.java
@@ -12,6 +12,7 @@ import org.gcube.portlets.user.td.widgetcommonevent.client.event.SessionExpiredE
 import org.gcube.portlets.user.td.widgetcommonevent.client.type.ChangeTableRequestType;
 import org.gcube.portlets.user.td.widgetcommonevent.client.type.ChangeTableWhy;
 import org.gcube.portlets.user.td.widgetcommonevent.client.type.SessionExpiredType;
+import org.gcube.portlets.user.td.widgetcommonevent.shared.OperationResult;
 import org.gcube.portlets.user.td.widgetcommonevent.shared.TRId;
 
 import com.allen_sauer.gwt.log.client.Log;
@@ -115,10 +116,10 @@ public class HistoryDiscard implements MonitorDialogListener {
 	}
 
 	@Override
-	public void operationComplete(TRId trId) {
+	public void operationComplete(OperationResult operationResult) {
 		ChangeTableWhy why = ChangeTableWhy.TABLEUPDATED;
 		ChangeTableRequestEvent changeTableRequestEvent = new ChangeTableRequestEvent(
-				ChangeTableRequestType.ROLLBACK, trId, why);
+				ChangeTableRequestType.ROLLBACK, operationResult.getTrId(), why);
 		eventBus.fireEvent(changeTableRequestEvent);
 		close();
 	}
@@ -131,10 +132,10 @@ public class HistoryDiscard implements MonitorDialogListener {
 	}
 
 	@Override
-	public void operationStopped(TRId trId, String reason, String details) {
+	public void operationStopped(OperationResult operationResult, String reason, String details) {
 		ChangeTableWhy why = ChangeTableWhy.TABLECURATION;
 		ChangeTableRequestEvent changeTableRequestEvent = new ChangeTableRequestEvent(
-				ChangeTableRequestType.ROLLBACK, trId, why);
+				ChangeTableRequestType.ROLLBACK, operationResult.getTrId(), why);
 		eventBus.fireEvent(changeTableRequestEvent);
 		close();
 
diff --git a/src/main/java/org/gcube/portlets/user/td/tablewidget/client/history/HistoryPanel.java b/src/main/java/org/gcube/portlets/user/td/tablewidget/client/history/HistoryPanel.java
index 8c0c637..0ed99b7 100644
--- a/src/main/java/org/gcube/portlets/user/td/tablewidget/client/history/HistoryPanel.java
+++ b/src/main/java/org/gcube/portlets/user/td/tablewidget/client/history/HistoryPanel.java
@@ -21,6 +21,7 @@ import org.gcube.portlets.user.td.widgetcommonevent.client.event.SessionExpiredE
 import org.gcube.portlets.user.td.widgetcommonevent.client.type.ChangeTableRequestType;
 import org.gcube.portlets.user.td.widgetcommonevent.client.type.ChangeTableWhy;
 import org.gcube.portlets.user.td.widgetcommonevent.client.type.SessionExpiredType;
+import org.gcube.portlets.user.td.widgetcommonevent.shared.OperationResult;
 import org.gcube.portlets.user.td.widgetcommonevent.shared.TRId;
 
 import com.allen_sauer.gwt.log.client.Log;
@@ -363,10 +364,10 @@ public class HistoryPanel extends FramedPanel implements MonitorDialogListener {
 	}
 
 	@Override
-	public void operationComplete(TRId trId) {
+	public void operationComplete(OperationResult operationResult) {
 		ChangeTableWhy why = ChangeTableWhy.TABLEUPDATED;
 		ChangeTableRequestEvent changeTableRequestEvent = new ChangeTableRequestEvent(
-				ChangeTableRequestType.ROLLBACK, trId, why);
+				ChangeTableRequestType.ROLLBACK, operationResult.getTrId(), why);
 		eventBus.fireEvent(changeTableRequestEvent);
 		close();
 	}
@@ -379,10 +380,10 @@ public class HistoryPanel extends FramedPanel implements MonitorDialogListener {
 	}
 
 	@Override
-	public void operationStopped(TRId trId, String reason, String details) {
+	public void operationStopped(OperationResult operationResult, String reason, String details) {
 		ChangeTableWhy why = ChangeTableWhy.TABLECURATION;
 		ChangeTableRequestEvent changeTableRequestEvent = new ChangeTableRequestEvent(
-				ChangeTableRequestType.ROLLBACK, trId, why);
+				ChangeTableRequestType.ROLLBACK, operationResult.getTrId(), why);
 		eventBus.fireEvent(changeTableRequestEvent);
 		close();
 
diff --git a/src/main/java/org/gcube/portlets/user/td/tablewidget/client/normalize/DenormalizePanel.java b/src/main/java/org/gcube/portlets/user/td/tablewidget/client/normalize/DenormalizePanel.java
index e84b91e..c3f8253 100644
--- a/src/main/java/org/gcube/portlets/user/td/tablewidget/client/normalize/DenormalizePanel.java
+++ b/src/main/java/org/gcube/portlets/user/td/tablewidget/client/normalize/DenormalizePanel.java
@@ -18,6 +18,7 @@ import org.gcube.portlets.user.td.widgetcommonevent.client.event.SessionExpiredE
 import org.gcube.portlets.user.td.widgetcommonevent.client.type.ChangeTableRequestType;
 import org.gcube.portlets.user.td.widgetcommonevent.client.type.ChangeTableWhy;
 import org.gcube.portlets.user.td.widgetcommonevent.client.type.SessionExpiredType;
+import org.gcube.portlets.user.td.widgetcommonevent.shared.OperationResult;
 import org.gcube.portlets.user.td.widgetcommonevent.shared.TRId;
 import org.gcube.portlets.user.td.widgetcommonevent.shared.tr.column.ColumnDataType;
 
@@ -407,10 +408,10 @@ public class DenormalizePanel extends FramedPanel implements
 	}
 
 	@Override
-	public void operationComplete(TRId trId) {
+	public void operationComplete(OperationResult operationResult) {
 		ChangeTableWhy why = ChangeTableWhy.TABLEUPDATED;
 		ChangeTableRequestEvent changeTableRequestEvent = new ChangeTableRequestEvent(
-				ChangeTableRequestType.DENORMALIZE, trId, why);
+				ChangeTableRequestType.DENORMALIZE, operationResult.getTrId(), why);
 		eventBus.fireEvent(changeTableRequestEvent);
 		close();
 	}
@@ -423,10 +424,10 @@ public class DenormalizePanel extends FramedPanel implements
 	}
 
 	@Override
-	public void operationStopped(TRId trId, String reason, String details) {
+	public void operationStopped(OperationResult operationResult, String reason, String details) {
 		ChangeTableWhy why = ChangeTableWhy.TABLECURATION;
 		ChangeTableRequestEvent changeTableRequestEvent = new ChangeTableRequestEvent(
-				ChangeTableRequestType.DENORMALIZE, trId, why);
+				ChangeTableRequestType.DENORMALIZE, operationResult.getTrId(), why);
 		eventBus.fireEvent(changeTableRequestEvent);
 		close();
 
diff --git a/src/main/java/org/gcube/portlets/user/td/tablewidget/client/normalize/NormalizePanel.java b/src/main/java/org/gcube/portlets/user/td/tablewidget/client/normalize/NormalizePanel.java
index af12260..2a72251 100644
--- a/src/main/java/org/gcube/portlets/user/td/tablewidget/client/normalize/NormalizePanel.java
+++ b/src/main/java/org/gcube/portlets/user/td/tablewidget/client/normalize/NormalizePanel.java
@@ -19,6 +19,7 @@ import org.gcube.portlets.user.td.widgetcommonevent.client.event.SessionExpiredE
 import org.gcube.portlets.user.td.widgetcommonevent.client.type.ChangeTableRequestType;
 import org.gcube.portlets.user.td.widgetcommonevent.client.type.ChangeTableWhy;
 import org.gcube.portlets.user.td.widgetcommonevent.client.type.SessionExpiredType;
+import org.gcube.portlets.user.td.widgetcommonevent.shared.OperationResult;
 import org.gcube.portlets.user.td.widgetcommonevent.shared.TRId;
 
 import com.allen_sauer.gwt.log.client.Log;
@@ -304,10 +305,10 @@ public class NormalizePanel extends FramedPanel implements
 	}
 
 	@Override
-	public void operationComplete(TRId trId) {
+	public void operationComplete(OperationResult operationResult) {
 		ChangeTableWhy why = ChangeTableWhy.TABLEUPDATED;
 		ChangeTableRequestEvent changeTableRequestEvent = new ChangeTableRequestEvent(
-				ChangeTableRequestType.NORMALIZE, trId, why);
+				ChangeTableRequestType.NORMALIZE, operationResult.getTrId(), why);
 		eventBus.fireEvent(changeTableRequestEvent);
 		close();
 	}
@@ -320,10 +321,10 @@ public class NormalizePanel extends FramedPanel implements
 	}
 
 	@Override
-	public void operationStopped(TRId trId, String reason, String details) {
+	public void operationStopped(OperationResult operationResult, String reason, String details) {
 		ChangeTableWhy why = ChangeTableWhy.TABLECURATION;
 		ChangeTableRequestEvent changeTableRequestEvent = new ChangeTableRequestEvent(
-				ChangeTableRequestType.NORMALIZE, trId, why);
+				ChangeTableRequestType.NORMALIZE, operationResult.getTrId(), why);
 		eventBus.fireEvent(changeTableRequestEvent);
 		close();
 
diff --git a/src/main/java/org/gcube/portlets/user/td/tablewidget/client/rows/DeleteRows.java b/src/main/java/org/gcube/portlets/user/td/tablewidget/client/rows/DeleteRows.java
index ad3c0ac..05be518 100644
--- a/src/main/java/org/gcube/portlets/user/td/tablewidget/client/rows/DeleteRows.java
+++ b/src/main/java/org/gcube/portlets/user/td/tablewidget/client/rows/DeleteRows.java
@@ -15,6 +15,7 @@ import org.gcube.portlets.user.td.widgetcommonevent.client.event.SessionExpiredE
 import org.gcube.portlets.user.td.widgetcommonevent.client.type.ChangeTableRequestType;
 import org.gcube.portlets.user.td.widgetcommonevent.client.type.ChangeTableWhy;
 import org.gcube.portlets.user.td.widgetcommonevent.client.type.SessionExpiredType;
+import org.gcube.portlets.user.td.widgetcommonevent.shared.OperationResult;
 import org.gcube.portlets.user.td.widgetcommonevent.shared.TRId;
 
 import com.allen_sauer.gwt.log.client.Log;
@@ -95,10 +96,10 @@ public class DeleteRows implements MonitorDialogListener {
 	}
 
 	@Override
-	public void operationComplete(TRId trId) {
+	public void operationComplete(OperationResult operationResult) {
 		ChangeTableWhy why = ChangeTableWhy.TABLEUPDATED;
 		ChangeTableRequestEvent changeTableRequestEvent = new ChangeTableRequestEvent(
-				ChangeTableRequestType.DELETEROWS, trId, why);
+				ChangeTableRequestType.DELETEROWS, operationResult.getTrId(), why);
 		eventBus.fireEvent(changeTableRequestEvent);
 		close();
 	}
@@ -111,10 +112,10 @@ public class DeleteRows implements MonitorDialogListener {
 	}
 
 	@Override
-	public void operationStopped(TRId trId, String reason, String details) {
+	public void operationStopped(OperationResult operationResult, String reason, String details) {
 		ChangeTableWhy why = ChangeTableWhy.TABLECURATION;
 		ChangeTableRequestEvent changeTableRequestEvent = new ChangeTableRequestEvent(
-				ChangeTableRequestType.DELETEROWS, trId, why);
+				ChangeTableRequestType.DELETEROWS, operationResult.getTrId(), why);
 		eventBus.fireEvent(changeTableRequestEvent);
 		close();
 
diff --git a/src/main/java/org/gcube/portlets/user/td/tablewidget/client/rows/DuplicatesRowsPanel.java b/src/main/java/org/gcube/portlets/user/td/tablewidget/client/rows/DuplicatesRowsPanel.java
index 67f4aaa..fa76780 100644
--- a/src/main/java/org/gcube/portlets/user/td/tablewidget/client/rows/DuplicatesRowsPanel.java
+++ b/src/main/java/org/gcube/portlets/user/td/tablewidget/client/rows/DuplicatesRowsPanel.java
@@ -19,6 +19,7 @@ import org.gcube.portlets.user.td.widgetcommonevent.client.event.SessionExpiredE
 import org.gcube.portlets.user.td.widgetcommonevent.client.type.ChangeTableRequestType;
 import org.gcube.portlets.user.td.widgetcommonevent.client.type.ChangeTableWhy;
 import org.gcube.portlets.user.td.widgetcommonevent.client.type.SessionExpiredType;
+import org.gcube.portlets.user.td.widgetcommonevent.shared.OperationResult;
 import org.gcube.portlets.user.td.widgetcommonevent.shared.TRId;
 
 import com.allen_sauer.gwt.log.client.Log;
@@ -332,10 +333,10 @@ public class DuplicatesRowsPanel extends FramedPanel implements
 	}
 
 	@Override
-	public void operationComplete(TRId trId) {
+	public void operationComplete(OperationResult operationResult) {
 		ChangeTableWhy why = ChangeTableWhy.TABLEUPDATED;
 		ChangeTableRequestEvent changeTableRequestEvent = new ChangeTableRequestEvent(
-				ChangeTableRequestType.DUPLICATES, trId, why);
+				ChangeTableRequestType.DUPLICATES, operationResult.getTrId(), why);
 		eventBus.fireEvent(changeTableRequestEvent);
 		close();
 	}
@@ -348,10 +349,10 @@ public class DuplicatesRowsPanel extends FramedPanel implements
 	}
 
 	@Override
-	public void operationStopped(TRId trId, String reason, String details) {
+	public void operationStopped(OperationResult operationResult, String reason, String details) {
 		ChangeTableWhy why = ChangeTableWhy.TABLECURATION;
 		ChangeTableRequestEvent changeTableRequestEvent = new ChangeTableRequestEvent(
-				ChangeTableRequestType.DUPLICATES, trId, why);
+				ChangeTableRequestType.DUPLICATES, operationResult.getTrId(), why);
 		eventBus.fireEvent(changeTableRequestEvent);
 		close();
 
diff --git a/src/main/java/org/gcube/portlets/user/td/tablewidget/client/rows/EditRowPanel.java b/src/main/java/org/gcube/portlets/user/td/tablewidget/client/rows/EditRowPanel.java
index 96560d5..344fdaf 100644
--- a/src/main/java/org/gcube/portlets/user/td/tablewidget/client/rows/EditRowPanel.java
+++ b/src/main/java/org/gcube/portlets/user/td/tablewidget/client/rows/EditRowPanel.java
@@ -24,6 +24,7 @@ import org.gcube.portlets.user.td.widgetcommonevent.client.type.ChangeTableReque
 import org.gcube.portlets.user.td.widgetcommonevent.client.type.ChangeTableWhy;
 import org.gcube.portlets.user.td.widgetcommonevent.client.type.SessionExpiredType;
 import org.gcube.portlets.user.td.widgetcommonevent.shared.CellData;
+import org.gcube.portlets.user.td.widgetcommonevent.shared.OperationResult;
 import org.gcube.portlets.user.td.widgetcommonevent.shared.TRId;
 import org.gcube.portlets.user.td.widgetcommonevent.shared.grid.model.RowRaw;
 import org.gcube.portlets.user.td.widgetcommonevent.shared.tr.column.ColumnDataType;
@@ -783,10 +784,10 @@ public class EditRowPanel extends FramedPanel implements MonitorDialogListener {
 	}
 
 	@Override
-	public void operationComplete(TRId trId) {
+	public void operationComplete(OperationResult operationResult) {
 		ChangeTableWhy why = ChangeTableWhy.TABLEUPDATED;
 		ChangeTableRequestEvent changeTableRequestEvent = new ChangeTableRequestEvent(
-				ChangeTableRequestType.EDITROW, trId, why);
+				ChangeTableRequestType.EDITROW, operationResult.getTrId(), why);
 		eventBus.fireEvent(changeTableRequestEvent);
 		close();
 	}
@@ -799,10 +800,10 @@ public class EditRowPanel extends FramedPanel implements MonitorDialogListener {
 	}
 
 	@Override
-	public void operationStopped(TRId trId, String reason, String details) {
+	public void operationStopped(OperationResult operationResult, String reason, String details) {
 		ChangeTableWhy why = ChangeTableWhy.TABLECURATION;
 		ChangeTableRequestEvent changeTableRequestEvent = new ChangeTableRequestEvent(
-				ChangeTableRequestType.EDITROW, trId, why);
+				ChangeTableRequestType.EDITROW, operationResult.getTrId(), why);
 		eventBus.fireEvent(changeTableRequestEvent);
 		close();
 
diff --git a/src/main/java/org/gcube/portlets/user/td/tablewidget/client/validation/ValidationsTasksPanel.java b/src/main/java/org/gcube/portlets/user/td/tablewidget/client/validation/ValidationsTasksPanel.java
index 540787f..6705bed 100644
--- a/src/main/java/org/gcube/portlets/user/td/tablewidget/client/validation/ValidationsTasksPanel.java
+++ b/src/main/java/org/gcube/portlets/user/td/tablewidget/client/validation/ValidationsTasksPanel.java
@@ -30,6 +30,7 @@ import org.gcube.portlets.user.td.widgetcommonevent.client.type.ChangeTableReque
 import org.gcube.portlets.user.td.widgetcommonevent.client.type.ChangeTableWhy;
 import org.gcube.portlets.user.td.widgetcommonevent.client.type.SessionExpiredType;
 import org.gcube.portlets.user.td.widgetcommonevent.client.type.WidgetRequestType;
+import org.gcube.portlets.user.td.widgetcommonevent.shared.OperationResult;
 import org.gcube.portlets.user.td.widgetcommonevent.shared.RequestProperties;
 import org.gcube.portlets.user.td.widgetcommonevent.shared.TRId;
 
@@ -656,10 +657,10 @@ public class ValidationsTasksPanel extends FramedPanel implements
 	}
 
 	@Override
-	public void operationComplete(TRId trId) {
+	public void operationComplete(OperationResult operationResult) {
 		ChangeTableWhy why = ChangeTableWhy.TABLEUPDATED;
 		ChangeTableRequestEvent changeTableRequestEvent = new ChangeTableRequestEvent(
-				ChangeTableRequestType.TASKRESUME, trId, why);
+				ChangeTableRequestType.TASKRESUME, operationResult.getTrId(), why);
 		eventBus.fireEvent(changeTableRequestEvent);
 		close();
 	}
@@ -672,10 +673,10 @@ public class ValidationsTasksPanel extends FramedPanel implements
 	}
 
 	@Override
-	public void operationStopped(TRId trId, String reason, String details) {
+	public void operationStopped(OperationResult operationResult, String reason, String details) {
 		ChangeTableWhy why = ChangeTableWhy.TABLECURATION;
 		ChangeTableRequestEvent changeTableRequestEvent = new ChangeTableRequestEvent(
-				ChangeTableRequestType.TASKRESUME, trId, why);
+				ChangeTableRequestType.TASKRESUME, operationResult.getTrId(), why);
 		eventBus.fireEvent(changeTableRequestEvent);
 		close();