> ## 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.

# Add Payment Info: Track Checkout Payment Events

> Count payment info additions in your checkout funnel. Measure how many visitors submit payment details to identify checkout drop-off points.

<Tip>
  Add Payment Info counts the total number of times visitors submit their payment information during checkout.
</Tip>

## Formula

<Info>
  **Add Payment Info** = **COUNT** ( Add Payment Info Events )
</Info>

### Formula Components

| Metric                      | Definition                                                                           |
| --------------------------- | ------------------------------------------------------------------------------------ |
| **Add Payment Info Events** | Each instance a visitor submits payment details (card, PayPal, etc.) during checkout |

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

***

## Example

Your Shopify store tracked payment info submissions throughout the checkout funnel in March:

| Week      | Add Payment Info | Add Shipping Info | Drop-off Rate |
| --------- | ---------------- | ----------------- | ------------- |
| Week 1    | 1,247            | 1,456             | 14.4%         |
| Week 2    | 1,389            | 1,598             | 13.1%         |
| Week 3    | 1,156            | 1,342             | 13.9%         |
| Week 4    | 1,423            | 1,687             | 15.6%         |
| **Total** | **5,215**        | **6,083**         | **14.3%**     |

***

## How It Works

Add Payment Info counts every payment submission event fired by the Upstack Pixel. When a visitor enters their payment method—credit card, PayPal, Shop Pay, or other payment options—one event is recorded. This metric captures visitors who have progressed through shipping and are ready to complete their purchase.

***

## When to Use

| Scenario                    | Action                                                      |
| --------------------------- | ----------------------------------------------------------- |
| Checkout funnel analysis    | Compare against shipping info to find payment step drop-off |
| Payment friction diagnosis  | Identify if payment form complexity causes abandonment      |
| Payment method optimization | A/B test different payment options and measure impact       |
| Purchase intent tracking    | Measure high-intent visitors who reach final checkout stage |

***

## Related Metrics

| Metric                                                                                   | Relationship                        |
| ---------------------------------------------------------------------------------------- | ----------------------------------- |
| [Add Shipping Info Value](/reference/metrics/funnel/conversions/add-shipping-info-value) | Previous step in checkout funnel    |
| [Purchases](/reference/metrics/funnel/conversions/all-purchases)                         | Final conversion after payment info |
| [Session Conversion Rate](/reference/metrics/funnel/conversions/session-conversion-rate) | Overall checkout efficiency         |

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