OverLay OverLay.cmp <aura:component implements="flexipage:availableForAllPageTypes,force:hasRecordId"> <lightning:overlayLibrary aura:id="overlayLib"/> <lightning:button variant="brand" value="Create Modal" label="Show Modal" onclick="{!c.handleShowModal}"/> {!v.body} </aura:component> OverLay.Js ({ handleShowModal : function(component, event, helper) { component.find('overlayLib').showCustomModal({ header: "Application Confirmation", body: 'This is Test', footer: 'Footer', showCloseButton: true, closeCallback: function() { alert('You closed the alert!'); ...