Depending on the site setup, there are a couple of ways to disable the newsletter option on the checkout page.
- The newsletter checkbox has been set via a global 'add newsletter checkbox' setting
- The checkbox has been added as custom content to the checkout page.
If added by a global setting that adds the newsletter signup option to all form pages including the checkout page.
- Click the MEMBERS menu link on the main links on the left side.
- Click SETUP either by the dropdown that appears under menu, or the small tabs top-right.
- On the Setup Screen click the option SETUP CUSTOM FIELDS / QUESTIONS
On that screen you will see the screen below, where the option is most likely checked.
If added via a custom content addition to the checkout page
- Click ECOMMERCE
- Click the INSERT CUSTOM TEXT button found in the Display Options section on the ecommerce page
- Scroll down to the section called Checkout - Additional Text Insertion and edit the relevant content area with the newsletter link.