Thank you for reaching out to Constant Contact's API Support.
What you are describing sounds like a sign-up form of some type. If you create your sign-up form correctly the page that asks to approve/allow the connect will only show to you as the owner of the Constant Contact account and not the person who is providing their contact information.
When you create your application to collect contact information please keep in mind that the owner of the website is the person who needs to be logging in and allowing access to the Constant Contact account. The way you do that is by going through the oAuth flow in our documentation.
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