if (po.get_TableName().equals(MAllocationHdr.Table_Name) && timing == TIMING_BEFORE_PREPARE) {
			msg = null;
			MAllocationHdr allocHdr = (MAllocationHdr) po;
			allocHdr.setDescription("Test By Edwin");
			allocHdr.saveEx();

			if (msg != null)
				return msg;
		}


		if (po.get_TableName().equals(MAllocationHdr.Table_Name) && timing == TIMING_AFTER_PREPARE) {
			msg = null;
			try {
				BigDecimal x = Env.ZERO;
				BigDecimal y = new BigDecimal(1);
				BigDecimal z = y.divide(x);
			}
			catch (Exception e) {
				msg = "Error";
			}
			if (msg != null)
				return msg;
		}