> ## 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.

# Signup Started: Track Registration Initiations

> Track when users begin the signup process. Measure top-of-funnel intent.

<Tip>
  Signup Started counts the number of times users initiate the registration process.
</Tip>

## Formula

<Info>
  **Signup Started** = **COUNT** ( signup\_started events )
</Info>

### Formula Components

| Metric                     | Definition                                      |
| -------------------------- | ----------------------------------------------- |
| **signup\_started events** | Events fired when a user begins the signup flow |

| Metadata        |                         |
| --------------- | ----------------------- |
| **Type**        | Number                  |
| **Data Source** | [Upstack Pixel](/pixel) |
| **Aggregation** | Count                   |

***

## Example

Your application tracked **3,450 signup\_started events** in January.

| Metric           | Value | Notes                    |
| ---------------- | ----- | ------------------------ |
| Signup Started   | 3,450 | Started signup flow      |
| Signup Completed | 1,250 | Finished registration    |
| Completion Rate  | 36.2% | Signup funnel conversion |

***

## How It Works

The Upstack pixel tracks `signup_started` events when users begin the registration flow—typically when they click "Sign Up" or reach the first step of the registration form.

***

## When to Use

| Scenario             | Action                                  |
| -------------------- | --------------------------------------- |
| Funnel analysis      | Measure signup intent vs completion     |
| Form optimization    | Identify drop-off in signup flow        |
| Campaign attribution | Track initial interest by source        |
| UX improvement       | Compare signup start rates across pages |

***

## Related Metrics

| Metric                                                                             | Relationship               |
| ---------------------------------------------------------------------------------- | -------------------------- |
| [Signup Started Cost](/reference/metrics/funnel/conversions/signup-started-cost)   | Cost per signup initiation |
| [Signup Started Value](/reference/metrics/funnel/conversions/signup-started-value) | Value attributed to starts |
| [Signup Completed](/reference/metrics/funnel/conversions/signup-completed)         | Finished registrations     |

[See all Conversions metrics →](/reference/metrics/funnel/conversions)