How to edit notification email?

In Form Builder V4, click the "Settings" in the top menu and then go to the "Emails" section. Hover your mouse to the notification and then click the "Edit" button.

After that, you'll see the "Email, Recipients, and Advanced" tab. You'll be able to edit the email message using the editor in the Email tab. You can assign email recipients, sender name and reply-to email in the Recipients tab.

Hope that helps. Thank you.