diff --git a/base/src/org/adempiere/exceptions/AdempiereException.java b/base/src/org/adempiere/exceptions/AdempiereException.java
new file mode 100644
index 0000000000..c8daf96fad
--- /dev/null
+++ b/base/src/org/adempiere/exceptions/AdempiereException.java
@@ -0,0 +1,84 @@
+/******************************************************************************
+ * Product: Adempiere ERP & CRM Smart Business Solution                       *
+ * Copyright (C) 2008 SC ARHIPAC SERVICE SRL. All Rights Reserved.            *
+ * This program is free software; you can redistribute it and/or modify it    *
+ * under the terms version 2 of the GNU General Public License as published   *
+ * by the Free Software Foundation. This program is distributed in the hope   *
+ * that it will be useful, but WITHOUT ANY WARRANTY; without even the implied *
+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.           *
+ * See the GNU General Public License for more details.                       *
+ * You should have received a copy of the GNU General Public License along    *
+ * with this program; if not, write to the Free Software Foundation, Inc.,    *
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.                     *
+ *****************************************************************************/
+package org.adempiere.exceptions;
+
+import java.util.Properties;
+
+import org.compiere.util.CLogger;
+import org.compiere.util.Env;
+import org.compiere.util.Msg;
+
+/**
+ * Any exception that occurs inside the Adempiere core
+ * @author Teo Sarca, SC ARHIPAC SERVICE SRL
+ */
+public class AdempiereException extends RuntimeException {
+	private static final long serialVersionUID = 1L;
+
+	/**
+	 * Default Constructor (saved logger error will be used as message)
+	 */
+	public AdempiereException() {
+		this(getMessageFromLogger());
+	}
+	
+
+	/**
+	 * @param message
+	 */
+	public AdempiereException(String message) {
+		super(message);
+	}
+
+	/**
+	 * @param cause
+	 */
+	public AdempiereException(Throwable cause) {
+		super(cause);
+	}
+
+	/**
+	 * @param message
+	 * @param cause
+	 */
+	public AdempiereException(String message, Throwable cause) {
+		super(message, cause);
+	}
+
+	@Override
+	public String getLocalizedMessage() {
+		String msg = super.getLocalizedMessage();
+		msg = Msg.parseTranslation(getCtx(), msg);
+		return msg;
+	}
+	
+	protected Properties getCtx() {
+		return Env.getCtx();
+	}
+
+
+	/**
+	 * @return error message from logger
+	 * @see org.compiere.util.CLogger#retrieveError()
+	 */
+	private static String getMessageFromLogger() {
+		org.compiere.util.ValueNamePair err = CLogger.retrieveError();
+		String msg = null;
+		if (err != null)
+			msg = err.getName();
+		if (msg == null)
+			msg = "UnknownError";
+		return msg;
+	}
+}
diff --git a/base/src/org/compiere/model/PO.java b/base/src/org/compiere/model/PO.java
index 9ecd41e832..76eb7a8275 100644
--- a/base/src/org/compiere/model/PO.java
+++ b/base/src/org/compiere/model/PO.java
@@ -39,6 +39,7 @@ import javax.xml.transform.TransformerFactory;
 import javax.xml.transform.dom.DOMSource;
 import javax.xml.transform.stream.StreamResult;
 
+import org.adempiere.exceptions.AdempiereException;
 import org.compiere.Adempiere;
 import org.compiere.acct.Doc;
 import org.compiere.util.CLogMgt;
@@ -53,6 +54,7 @@ import org.compiere.util.Msg;
 import org.compiere.util.SecureEngine;
 import org.compiere.util.Trace;
 import org.compiere.util.Trx;
+import org.compiere.util.ValueNamePair;
 import org.w3c.dom.Document;
 import org.w3c.dom.Element;
 
@@ -63,7 +65,10 @@ import org.w3c.dom.Element;
  *  @author Jorg Janke
  *  @version $Id: PO.java,v 1.12 2006/08/09 16:38:47 jjanke Exp $
  *  
- *  @author Teo Sarca - FR [ 1675490 ], BF [ 1704828 ]
+ *  @author Teo Sarca, SC ARHIPAC SERVICE SRL
+ *			<li>FR [ 1675490 ] ModelValidator on modelChange after events
+ *			<li>BF [ 1704828 ] PO.is_Changed() and PO.is_ValueChanged are not consistent
+ *			<li>FR [ 1720995 ] Add PO.saveEx() and PO.deleteEx() methods
  */
 public abstract class PO 
 	implements Serializable, Comparator, Evaluatee
@@ -1948,6 +1953,24 @@ public abstract class PO
 		}
 	}	//	save
 	
+	/**
+	 * Update Value or create new record.
+	 * @throws AdempiereException
+	 * @see #save()
+	 */
+	public void saveEx() throws AdempiereException
+	{
+		if (!save()) {
+			String msg = null;
+			ValueNamePair err = CLogger.retrieveError();
+			if (err != null)
+				msg = err.getName();
+			if (msg == null)
+				msg = "SaveError";
+			throw new AdempiereException(msg);
+		}
+	}
+	
 	/**
 	 * 	Finish Save Process
 	 *	@param newRecord new
@@ -2044,6 +2067,18 @@ public abstract class PO
 		return save();
 	}
 	
+	/**
+	 * Update Value or create new record.
+	 * @param trxName transaction
+	 * @throws AdempiereException
+	 * @see #saveEx(String)
+	 */
+	public void saveEx(String trxName) throws AdempiereException
+	{
+		set_TrxName(trxName);
+		saveEx();
+	}
+
 	/**
 	 * 	Is there a Change to be saved?
 	 *	@return true if record changed
@@ -2794,6 +2829,25 @@ public abstract class PO
 		return success;
 	}	//	delete
 	
+	/**
+	 * Delete Current Record
+	 * @param force delete also processed records
+	 * @throws AdempiereException
+	 * @see #delete(boolean)
+	 */
+	public void deleteEx(boolean force) throws AdempiereException
+	{
+		if (!delete(force)) {
+			String msg = null;
+			ValueNamePair err = CLogger.retrieveError();
+			if (err != null)
+				msg = err.getName();
+			if (msg == null)
+				msg = "DeleteError";
+			throw new AdempiereException(msg);
+		}
+	}
+	
 	/**
 	 * 	Delete Current Record
 	 * 	@param force delete also processed records
@@ -2806,6 +2860,19 @@ public abstract class PO
 		return delete (force);
 	}	//	delete
 
+	/**
+	 * Delete Current Record
+	 * @param force delete also processed records
+	 * @param trxName transaction
+	 * @throws AdempiereException
+	 * @see {@link #deleteEx(boolean)}
+	 */
+	public void deleteEx(boolean force, String trxName) throws AdempiereException
+	{
+		set_TrxName(trxName);
+		deleteEx(force);
+	}
+	
 	/**
 	 * 	Executed before Delete operation.
 	 *	@return true if record can be deleted