Many a times there is a requirement to show UI page and take input from user and update the current record.

This can be handled using an UI page which gets invoked from UI action.

Something similar below, please enhance it as per your requirement.

HTML:

<?xml version="1.0" encoding="utf-8" ?>

Client Script:

function onCancel() { GlideDialogWindow.get().destroy(); return false; } function onSubmit() { var data = gel('notes').value; var sysId = gel('task_sys_id'); var app = new GlideRecord("incident"); if(app.get(sysId)){ app.description = data; app.update(); } window.open('/incident.do?sys_id='+sysId); }

UI Action:

function confirmAction() { var dialog = new GlideDialogWindow('ui page name'); dialog.setTitle('Reopen'); dialog.setPreference('sysid', g_form.getUniqueValue()); dialog.render(); }