Hi,
try ‘scheduler.getActionData’ method. Also, when ‘onBeforeEventChanged’ triggers, the related property of an event (event.section_id or similar) should already contain the id of the resource
scheduler.attachEvent("onBeforeEventChanged", function(ev, e, is_new){
var resource = scheduler.getActionData(e).section
return true;
}); docs.dhtmlx.com/scheduler/api__s … ndata.html