> ## 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.

# Upsell Purchase Value: Track Post-Purchase Revenue

> Track total revenue from upsell purchases on your Shopify store. Measure post-purchase offer performance and optimize upsell conversion rates.

<Tip>
  Upsell Purchase Value is the total monetary value of all upsell purchase events tracked by the Upstack pixel.
</Tip>

## Formula

<Info>
  **Upsell Purchase Value** = **SUM** ( Upsell Purchase Values )
</Info>

### Formula Components

| Metric                     | Definition                                                        |
| -------------------------- | ----------------------------------------------------------------- |
| **SUM**                    | Aggregation function that totals all upsell purchase values       |
| **Upsell Purchase Values** | Monetary value of each post-purchase upsell accepted by customers |

| Metadata        |                                                              |
| --------------- | ------------------------------------------------------------ |
| **Type**        | Currency                                                     |
| **Data Source** | [Upstack Pixel](/pixel), [Shopify](/sources/catalog/shopify) |
| **Aggregation** | Sum                                                          |

***

## Example

Your Shopify store generated **\$8,450** in upsell revenue from 423 upsell purchases this month:

| Week   | Upsell Value | Upsell Purchases | Avg Value |
| ------ | ------------ | ---------------- | --------- |
| Week 1 | \$2,100      | 105              | \$20.00   |
| Week 2 | \$2,350      | 118              | \$19.92   |
| Week 3 | \$1,850      | 92               | \$20.11   |
| Week 4 | \$2,150      | 108              | \$19.91   |

***

## How It Works

The Upstack pixel tracks every upsell purchase event on your Shopify store, capturing the monetary value when a customer accepts a post-purchase or in-cart upsell offer. Upsell Purchase Value sums all these accepted upsell amounts, helping you measure the incremental revenue generated beyond the initial purchase.

***

## When to Use

| Scenario                            | Action                                                                  |
| ----------------------------------- | ----------------------------------------------------------------------- |
| Measuring upsell ROI                | Compare upsell revenue against the cost of your upsell app or offers    |
| Optimizing post-purchase offers     | Track which upsell products generate the most revenue                   |
| Evaluating average order value lift | See how upsells contribute to overall order value on your Shopify store |
| Analyzing customer behavior         | Understand which customer segments accept upsells most frequently       |

***

## Related Metrics

| Metric                                                                                     | Relationship                                           |
| ------------------------------------------------------------------------------------------ | ------------------------------------------------------ |
| [Upsell Purchases](/reference/metrics/funnel/conversions/upsell-purchases)                 | Count of upsell events (this metric sums their values) |
| [Cost per Upsell Purchase](/reference/metrics/funnel/conversions/cost-per-upsell-purchase) | Ad spend required to generate each upsell conversion   |
| [Conversion Value](/reference/metrics/funnel/conversions/conversion-value)                 | Total revenue from all attributed conversions          |

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