> ## 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.

# Marketing Cost Per Order: Ad Spend Efficiency

> Measure marketing spend per order in your Shopify store. Track how much ad spend is allocated to each attributed conversion.

<Tip>
  Marketing Cost Per Order measures the average marketing spend allocated to each attributed order.
</Tip>

## Formula

<Info>
  **Marketing Cost Per Order** = **Total Marketing Cost** ÷ **Orders**
</Info>

### Formula Components

| Metric                                                                                   | Definition                              |
| ---------------------------------------------------------------------------------------- | --------------------------------------- |
| [**Total Marketing Cost**](/reference/metrics/orders/contribution-margin/marketing-cost) | Sum of all ad spend allocated to orders |
| [**Orders**](/reference/metrics/orders/conversions/orders)                               | Total number of attributed orders       |

| Metadata        |                                                                                                                                      |
| --------------- | ------------------------------------------------------------------------------------------------------------------------------------ |
| **Type**        | Currency                                                                                                                             |
| **Data Source** | [Meta Ads](/sources/facebook-ads), [Google Ads](/sources/google-ads), [TikTok Ads](/sources/tiktok-ads), [Shopify](/sources/shopify) |
| **Aggregation** | Average                                                                                                                              |

***

## Example

Your Shopify store spent \$30,000 on marketing and generated 1,500 attributed orders.

| Component                    | Value       |
| ---------------------------- | ----------- |
| Total Marketing Cost         | \$30,000    |
| Orders                       | 1,500       |
| **Marketing Cost Per Order** | **\$20.00** |

***

## How It Works

Marketing Cost Per Order divides total marketing spend by attributed orders. This metric helps you understand how much ad spend is required to generate a single conversion. It factors into CM3 calculations and is essential for evaluating marketing efficiency.

Marketing cost includes spend from all connected ad platforms (Meta, Google, TikTok, etc.) allocated via your attribution model.

***

## When to Use

| Scenario                        | Action                                                   |
| ------------------------------- | -------------------------------------------------------- |
| Evaluating marketing efficiency | Lower Marketing Cost Per Order = more efficient          |
| Setting CPA targets             | Use as baseline for cost-per-acquisition goals           |
| Comparing channels              | Identify which channels deliver lower cost per order     |
| Protecting CM3 margins          | Ensure Marketing Cost Per Order leaves acceptable margin |

***

## Related Metrics

| Metric                                                                                                                                   | Relationship                         |
| ---------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------ |
| [New Customer Marketing Cost Per Order](/reference/metrics/orders/contribution-margin/new-customer-marketing-cost-per-order)             | Marketing cost for first-time buyers |
| [Returning Customer Marketing Cost Per Order](/reference/metrics/orders/contribution-margin/returning-customer-marketing-cost-per-order) | Marketing cost for repeat buyers     |
| [Marketing Cost %](/reference/metrics/orders/contribution-margin/marketing-cost-percent)                                                 | Marketing as percentage of revenue   |
| [CM3 Per Order](/reference/metrics/orders/contribution-margin/cm3-per-order)                                                             | Margin after marketing               |

[See all Contribution Margin metrics →](/reference/metrics/orders/contribution-margin)