My button code wasn't saved in the button builder.

Our Button Builder does not save button code; many nonprofits build multiple buttons for different donation scenarios. While we may add this feature in the future, the best way to save button code is to save it in a text document, so that you can copy and paste the code when needed into your website. Also, if you choose the email feature when finishing a button you've built, the code for that button will be saved in your email files unless you delete it.