I also had this issue and it drove me crazy. Completely agree that this should be functionality that exists within constant contact because that's what email marketers are currently doing. Anyhow, I found a way to accomplish this but had to use the WPForms plugin so I just wanted to share to help everyone else out. The WPForms plugin can connect to Constant Contact and there is a confirmation setting within the form settings that allows you to redirect to any URL like a thank you page. I used elementor to create the landing and thank you pages. Elementor allows you to use the WPForm shortcode to imbed into the landing page. Super simple and works great, good luck! John
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