> ## 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 Purchases: Track Post-Purchase Revenue

> Count upsell purchase conversions in your Shopify store. Track revenue from post-purchase offers and optimize your upsell funnel with attribution data.

<Tip>
  Upsell Purchases counts the total number of purchases made through upsell or cross-sell offers.
</Tip>

## Formula

<Info>
  **Upsell Purchases** = **COUNT** ( Upsell Purchase Events )
</Info>

### Formula Components

| Metric                     | Definition                                                           |
| -------------------------- | -------------------------------------------------------------------- |
| **COUNT**                  | Aggregation function that counts each upsell purchase event          |
| **Upsell Purchase Events** | Purchase events triggered by accepting an upsell or cross-sell offer |

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

***

## Example

Your Shopify store tracked **287 upsell purchases** this month from post-purchase offers:

| Upsell Offer Type    | Upsell Purchases | Conversion Rate |
| -------------------- | ---------------- | --------------- |
| Post-checkout upsell | 156              | 12.4%           |
| Cart page cross-sell | 89               | 8.2%            |
| Thank you page offer | 42               | 6.1%            |

***

## How It Works

Upstack automatically tracks upsell purchases when customers accept post-purchase or cross-sell offers in your Shopify store. Each accepted offer triggers an upsell purchase event, which is attributed to the original marketing touchpoint that brought the customer to your store.

***

## When to Use

| Scenario                        | Action                                              |
| ------------------------------- | --------------------------------------------------- |
| Measuring upsell performance    | Track acceptance rates of post-purchase offers      |
| Optimizing offer placement      | Compare upsell conversion rates across touchpoints  |
| Calculating incremental revenue | Measure additional revenue from upsell campaigns    |
| Testing upsell strategies       | A/B test different offers and track purchase volume |

***

## Related Metrics

| Metric                                                                                     | Relationship                               |
| ------------------------------------------------------------------------------------------ | ------------------------------------------ |
| [Conversions](/reference/metrics/funnel/conversions/conversions)                           | Primary purchases (upsells are additional) |
| [Conversion Value](/reference/metrics/funnel/conversions/conversion-value)                 | Total value including upsell revenue       |
| [Average Conversion Value](/reference/metrics/funnel/conversions/average-conversion-value) | Average order value with upsells included  |

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