if (bill.isOpen()) {
final String sBillEmployeeUUID = (bill.getEmployeeUuid()==null ? "" : bill.getEmployeeUuid());
if (sBillEmployeeUUID.length()==0) {
Log.out.debug("Assigning BillNote "+bill.id()+" to employee "+sBeanEmployeeUUID);
bill.setEmployee(txpy.employees(getSession()).seek(getSession(), sBeanEmployeeUUID));
bill.save(getSession());
setBillNoteId(bill.id());
} else if (sBillEmployeeUUID.equals(sBeanEmployeeUUID)) {
setBillNoteId(bill.id());
} else {
errors.add("empleado", new LocalizableError("com.zesped.action.EditBillNote.employeeConceptMismatch"));