> ## 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.

# Cost per Add Shipping Info: Checkout Funnel Efficiency

> Track how much you spend to get shoppers to add shipping info. Measure checkout funnel efficiency and optimize ad spend.

<Tip>
  Cost per Add Shipping Info measures the average ad spend required to drive one visitor to submit their shipping information during checkout.
</Tip>

## Formula

<Info>
  **Cost per Add Shipping Info** = **Channel Spend** ÷ **Add Shipping Info Events**
</Info>

### Formula Components

| Metric                                                                                 | Definition                                                          |
| -------------------------------------------------------------------------------------- | ------------------------------------------------------------------- |
| **Channel Spend**                                                                      | Total advertising spend across the selected channel                 |
| [**Add Shipping Info Events**](/reference/metrics/funnel/engagement/add-shipping-info) | Total times visitors submitted shipping information during checkout |

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

***

## Example

Your store spent **\$5,000** on Meta ads last week and generated **625 add shipping info events** from that traffic.

| Metric                         | Value      | Calculation              |
| ------------------------------ | ---------- | ------------------------ |
| Channel Spend                  | \$5,000    | Total Meta ad spend      |
| Add Shipping Info Events       | 625        | Tracked by Upstack Pixel |
| **Cost per Add Shipping Info** | **\$8.00** | \$5,000 ÷ 625            |

***

## How It Works

Cost per Add Shipping Info is calculated by dividing total channel spend by the number of add shipping info events tracked by the Upstack Pixel. This metric shows how efficiently your ad spend converts visitors into shoppers who are committed enough to enter their shipping address — a strong signal of purchase intent.

***

## When to Use

| Scenario                              | Action                                                              |
| ------------------------------------- | ------------------------------------------------------------------- |
| Evaluating checkout funnel efficiency | Compare cost to acquire users at different funnel stages            |
| Optimizing mid-funnel ad targeting    | Lower cost per add shipping info indicates better-qualified traffic |
| Identifying checkout friction         | High cost may signal shipping-related abandonment issues            |
| Comparing channel performance         | Use to evaluate which channels drive committed shoppers             |

***

## Related Metrics

| Metric                                                                                        | Relationship                           |
| --------------------------------------------------------------------------------------------- | -------------------------------------- |
| [Add Shipping Info](/reference/metrics/funnel/engagement/add-shipping-info)                   | The count this cost metric is based on |
| [Cost per Add Payment Info](/reference/metrics/funnel/conversions/cost-per-add-payment-info)  | Next step in checkout funnel           |
| [Cost per Initiate Checkout](/reference/metrics/funnel/engagement/cost-per-initiate-checkout) | Previous step in checkout funnel       |

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