> For the complete documentation index, see [llms.txt](https://docs.changeup.com/salesforce/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.changeup.com/salesforce/salesforce-b2c-commerce/setup-and-configuration/configuration-dashboard/donate-at-checkout/supersize-donation.md).

# Supersize Donation

Supersize allows the merchant to offer the customers the ability to increase their donation.

The first selected value will always be smaller than the second selector's values, and the second set value has to be smaller than the third selector's values. When you change the value to one selector, the following selector will change their values to be greater than the selected value from the previous selector.

<figure><img src="https://1517107696-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FFAsJWg3p7NRgo4lfknb3%2Fuploads%2FCnpsDv7VjGiqOGiKHeFU%2FSupersizeExample.png?alt=media&amp;token=eb7cb881-51a0-4b4d-acd3-10bd28557033" alt=""><figcaption><p>Supersize active in the payment flow.</p></figcaption></figure>

Once this feature is enabled, it will show these options:

* **Three Options**: you can select three different dollar amounts to supersize the donation, and the customer can choose one.
* **Headline for Supersize**: "Supersize your Donation!" is the default, but it can be edited to suit your brand.

<figure><img src="https://1517107696-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FFAsJWg3p7NRgo4lfknb3%2Fuploads%2Ft2Eu9oB0pbkMZjaurPQX%2FSupersizeBlock.png?alt=media&amp;token=0c13404e-86e4-4476-9134-a921f7882930" alt=""><figcaption><p>Supersize options in configuration panel.</p></figcaption></figure>
