> ## 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.

# Meta Add to Carts: Mid-Funnel Purchase Intent

> Track Meta Add to Carts to measure purchase intent from your ads. Monitor how many visitors add products to cart after engaging with Meta campaigns.

<Tip>
  Meta Add to Carts counts how many add-to-cart events Meta attributes to your ads, indicating mid-funnel purchase intent.
</Tip>

## Formula

<Info>
  **Meta Add to Carts** = **COUNT** ( add\_to\_cart events )

  Each add-to-cart event attributed to your Meta ads is counted once, regardless of cart value.
</Info>

| Metadata        |                                   |
| --------------- | --------------------------------- |
| **Type**        | Number                            |
| **Data Source** | [Meta Ads](/sources/facebook-ads) |
| **Aggregation** | Count                             |

***

## Example

Your Meta campaigns drove **2,847 add-to-carts** in March across three ad sets.

| Ad Set      | Add to Carts | Spend   | Cost per ATC |
| ----------- | ------------ | ------- | ------------ |
| Retargeting | 1,412        | \$1,412 | \$1.00       |
| Lookalike   | 898          | \$1,796 | \$2.00       |
| Prospecting | 537          | \$2,148 | \$4.00       |

***

## How It Works

Meta counts an add-to-cart event when a visitor adds a product to their shopping cart after interacting with your ad within the attribution window. The event is captured via the Meta Pixel on your site or sent through the Conversions API from your server.

***

## When to Use

| Scenario                          | Action                                                                         |
| --------------------------------- | ------------------------------------------------------------------------------ |
| Measuring purchase intent         | Track add-to-cart volume to gauge how many visitors show buying interest       |
| Evaluating mid-funnel performance | Compare add-to-cart counts across campaigns to identify engagement drivers     |
| Diagnosing funnel drop-off        | Analyze the gap between add-to-carts and purchases to find conversion blockers |
| Optimizing prospecting campaigns  | Monitor add-to-carts for cold audiences where immediate purchases are rare     |

***

## Related Metrics

| Metric                                                                                                      | Relationship                                  |
| ----------------------------------------------------------------------------------------------------------- | --------------------------------------------- |
| [Meta Cost per Add to Cart](/reference/metrics/advertising/meta/meta-conversions/meta-cost-per-add-to-cart) | Efficiency metric for add-to-cart acquisition |
| [Meta Purchases](/reference/metrics/advertising/meta/meta-conversions/meta-purchases)                       | Final conversion event in the purchase funnel |
| [Meta Initiate Checkouts](/reference/metrics/advertising/meta/meta-conversions/meta-initiate-checkouts)     | Next step in the funnel after add-to-cart     |

[See all Meta Conversions metrics →](/reference/metrics/advertising/meta/meta-conversions)