Hi, how can I add additional scripts or code directly to the form?

I need add "Friendbuy" share to my 'Thank you for your purchase" page.

Without adding extra code to Jotform, The Friendbuy cannot track each sale. I have spoken to Friendbuy technicians and they have told me I need to do this.

Thanks for clarifying.

Unfortunately, you cannot add any type of code to your form, you can only add CSS to customize the layout, but JavaScript or similar languages are not allowed in the Form Builder.

If you want to customize your form using JavaScript or another code you will need to get the source code and then make the changes there. 

Here is a guide that will help you to get the source code for your form: How-to-get-the-Full-Source-Code-of-your-Form