How are you able to send an email to one email address and have the form populate another one based on previous behavior?

[Anonymous]

I've been getting Marketo emails for webinar invitations and such at one email address. Then when I go to the form, my other email address that I originally put in a form is automatically populated so that I can get my reminders and thank you emails at the second email address. How are you able to do that exactly? Does Marketo have multiple keys on contacts?

[Anonymous · Accepted solution]

There is a cookie for one of the lead records the reason the form is pre-populated.

When Marketo de-duplicates campaign execution it will send emails and execute other actions for the record that has the most recent updates (please compare the Last Updated).