> ## 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.

# Login Value: Total Revenue from Login Events

> Track total monetary value of login events captured by the Upstack pixel. Measure the engagement value of returning authenticated users.

<Tip>
  Total monetary value of login events tracked by the Upstack pixel.
</Tip>

## Formula

<Info>
  **Login Value** = **SUM** ( Login Event Values )
</Info>

### Formula Components

| Metric                 | Definition                                               |
| ---------------------- | -------------------------------------------------------- |
| **SUM**                | Aggregation function that totals all login event values  |
| **Login Event Values** | Monetary value assigned to each login event when tracked |

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

***

## Example

Your store tracked **\$6,400** in login value this month across 1,280 logins:

| Channel    | Login Value | Logins | Avg Value |
| ---------- | ----------- | ------ | --------- |
| Meta Ads   | \$3,800     | 760    | \$5.00    |
| Google Ads | \$1,900     | 380    | \$5.00    |
| TikTok Ads | \$700       | 140    | \$5.00    |

***

## How It Works

Login Value sums the monetary value assigned to each login event tracked by the Upstack pixel. When a returning customer authenticates on your site, the event can include a custom value representing expected session value or customer lifetime value. This metric helps quantify the total engagement value from authenticated user sessions across your marketing campaigns.

***

## When to Use

| Scenario                     | Action                                                          |
| ---------------------------- | --------------------------------------------------------------- |
| Retention campaign valuation | Measure total value from campaigns targeting existing customers |
| Channel comparison           | Compare login value contribution across advertising platforms   |
| Customer engagement analysis | Higher login values may indicate more engaged customer segments |
| ROI calculation              | Pair with cost per login to calculate re-engagement ROI         |

***

## Related Metrics

| Metric                                                                | Relationship                                        |
| --------------------------------------------------------------------- | --------------------------------------------------- |
| [Logins](/reference/metrics/funnel/engagement/login)                  | Count of login events that contribute to this value |
| [Cost per Login](/reference/metrics/funnel/engagement/cost-per-login) | Spend efficiency for generating login events        |

[See all Engagement metrics →](/reference/metrics/funnel/engagement)