Is there a way to know what is exactly doing that button on the Server Side? I need to do a scheduled script to update all the items from projects on opportunities. Up to now I hack it with a Client Script that open all the opportunities in multiple tabs, click on the button and close the tabs but it's not really professional. Is there the native code of netsuite somewhere with all the functions they have built? The function of the button is InsertProjectItems(getSelectValue(document.forms['item_main_form'].elements['projitemsel']));return false; . Thanks