> ## Documentation Index
> Fetch the complete documentation index at: https://docs.upstackdata.com/llms.txt
> Use this file to discover all available pages before exploring further.

# webinar_registered Event

> Track when a user registers for a webinar or virtual event.

Fires when a user registers for a webinar or virtual event. Use this event to measure event marketing performance and track registrant-to-attendee conversion.

## JavaScript

```javascript theme={null}
window._upstack('track', 'webinar_registered', {
  webinarId: 'web_product_demo_2024',
  webinarTitle: 'Product Demo: Advanced Analytics Features',
  webinarDate: '2026-03-15T14:00:00.000Z',
  userEmail: 'attendee@company.com',
  companyName: 'Attendee Corp',
  source: 'email_campaign'
});
```

## Properties

| Property     | Type   | Required | Description                          |
| ------------ | ------ | -------- | ------------------------------------ |
| webinarId    | string | Yes      | Unique webinar identifier            |
| webinarTitle | string | No       | Human-readable webinar title         |
| webinarDate  | string | No       | ISO 8601 scheduled date              |
| userEmail    | string | No       | Registrant's email address           |
| companyName  | string | No       | User's company name                  |
| source       | string | No       | Where the registration was initiated |

## When to Fire

* After webinar registration form submission
* After calendar invite is sent
* After registration confirmation email is delivered