> ## Documentation Index
> Fetch the complete documentation index at: https://docs.topsort.com/llms.txt
> Use this file to discover all available pages before exploring further.

# CPA (cost-per-action) Charge Type

> Advertisers can now choose CPA Charge Type for sponsored listings so they are only charged when a conversion is attributed.

export const ChangelogActions = () => {
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          🤍 Like
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<div style={{ display: "flex", gap: "8px", flexWrap: "wrap", marginBottom: "16px" }}>
  <Badge color="gray" size="sm" icon="calendar">December 29, 2024</Badge>
  <Badge color="blue" size="sm" icon="rectangle-ad">Ad Platform</Badge>
  <Badge color="green" size="sm" icon="sparkles">New Feature</Badge>
</div>

## **Importance of CPA**

CPA provides the critical link between ad spend and actual conversion, allowing for more granular optimization and better budget allocation. This directly addresses a key advertiser need: understanding the cost of acquiring a valuable customer through their campaigns.

#### **Key Benefits**

* **ROAS Optimization:** CPA tracking allows advertisers to directly measure the return on their ad spend by understanding how much it costs to acquire a customer.
* **Performance Measurement & Comparison:** CPA provides a clear and concise metric for evaluating campaign/product performance.
* **Improved Budget Allocation:** By understanding the CPA for different products or campaigns, advertisers can allocate their budget more effectively, shifting spend towards the most profitable acquisition channels.

#### **How It Works**

**This feature will require integration changes .**

The charge is triggered whenever a reported purchase from a marketplace is attributed to a sponsored click.

**CPA Calculation:** The platform will automatically calculate CPA by dividing the total ad spend for a campaign by the number of conversions attributed to that campaign.

#### **Considerations**

* Only for sponsored listings
* Only last-click attribution is supported
* Only for campaigns with “total budget” configuration
* Ignore over spending. If a purchase happens after the total budget is consumed, the charge will not be reflexted.
* Not compatible with halo attribution.

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