I created a subscription management page using a free-form landing page. https://go.conetrix.com/UnsubscribePage.html
I have now noticed that the pre-fill doesn't work under the "Update your information" section.
After reading a handful of similar questions, I'm starting to wonder if it is because pre-fill doesn't work on free form landing page. My guess is because it has similar characteristics as an embedded form. Is this correct?
If this is correct, is this the solution I should pursue next? Form Pre-Fill. External sites. No limits. You're welcome.
Or, is there another solution that might be simpler?