> For the complete documentation index, see [llms.txt](https://docs.2checkout.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.2checkout.com/shopping-carts/inline/use-cases/set-the-pricing-option-for-catalog-products.md).

# Set the pricing option for catalog products

## Overview

Use the **Product object** option property to override the default pricing option defined in your [2Checkout Merchant Control Panel](https://secure.2checkout.com/cpanel/).

## Use case

1. Add an HTML link or button in your page like the one below.
2. Create a JavaScript click handler to execute the InLine Client desired methods.
3. Use the`TwoCoInlineCart.products.add({code, quantity, options})`method to prepare your catalog product.
4. The **options** property should contain a list of objects with the name of the field and value.
5. Use the`TwoCoInlineCart.cart.checkout()`method to show the cart on your page.

## Sample request

### HTML

```html
<a href="#" class="btn btn-success" id="buy-button">Buy now!</a>
```

### JavaScript

```javascript
window.document.getElementById('buy-button').addEventListener('click', function() {
  TwoCoInlineCart.products.add({
    code: "74B8E17CC0",
    quantity: 3,
    options: [
      {
        name: '11234',
        value: 'new123'
      },
      {
        name: "DEMO_NUMBE_OF_PCS",
        value: "premiumversion"
      },
      {
        name: "DEVICES_5",
        value: "two_devices"
      }
    ]
  });
  TwoCoInlineCart.cart.checkout();
});
```

## Demo

After overriding the default pricing option using the above method, your cart should look like this:

{% embed url="<https://codepen.io/2checkout-documentation/pen/VJLOLr>" %}


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