> ## 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.

# user_activated Event

> Track when a user reaches an activation milestone within the product.

Fires when a user reaches an activation milestone within the product. Use this event to measure user onboarding success and product adoption.

## JavaScript

```javascript theme={null}
window._upstack('track', 'user_activated', {
  userId: 'usr_xyz789',
  accountId: 'acct_abc123',
  userEmail: 'user@acme.com',
  activationMilestone: 'completed_onboarding',
  daysToActivation: 2
});
```

## Properties

| Property            | Type   | Required | Description                    |
| ------------------- | ------ | -------- | ------------------------------ |
| userId              | string | Yes      | User identifier                |
| accountId           | string | Yes      | Account identifier             |
| userEmail           | string | No       | User email address             |
| activationMilestone | string | No       | Which milestone was reached    |
| daysToActivation    | number | No       | Days from signup to activation |

## When to Fire

* When user completes onboarding checklist
* When user performs first key action
* When user reaches engagement threshold