Best Practices? Update Profile/Preferences for Existing Leads
I'd like to send an email to a smart list of leads asking them to visit a landing page we've created that includes a form to "update" their current profile and preferences within our database. The information are items like first name, last name, dob, phone, etc.
How can we do this where the email address for the form is pre-populated with what already exists for their Lead ID, and we aren't creating duplicate leads in the database when they submit the form?
Very basic sample: campaign.fivestaralliance.com/Profile.html
I'm sure this is something easy, but I haven't been able to figure it out.
Thanks.