Form Pre-Fill Feature Upgrade

Description description

With the evolving best practices and awareness around data privacy, Marketo will be upgrading how we handle form pre-fill.

What change is being made?


Starting April 24, 2019, Marketo will only pre-fill form fields if the URL used to navigate to the Marketo landing page contains a valid mkt_tok URL parameter value (which occurs when users click tracked links in Marketo emails). What that means is, any time a person is viewing a Marketo landing page with a form, the URL being used must contain the mkt_tok token in the query string, otherwise the form on that landing page will not be pre-filled. If the URL in the browser window does have a valid mkt_tok tracking token, then the form within the page will pre-fill as expected with data corresponding to the person record associated with that mkt_tok.

Also note that if you are embedding Marketo Landing Pages within other web pages using an < iframe> , the mkt_tok would need to be passed from the parent page to the < iframe> URL if you intend for form prefill to work within the < iframe>

How did it work before?


Previously, Marketo landing pages would rely on Munchkin tracking cookies to identify known person records, and forms would pre-fill based on that cookie. Form pre-fill did not require being linked to a Marketo landing page from a tracked email link.

Why is this changing?


This upgrade is being made to provide a more consistent and more secure experience with Marketo’s forms. We have identified that, in the past, people have experienced scenarios where data pre-filled into a form didn’t always correspond with the actual person viewing the page. For example, people using a shared computer or those who may have been cookied incorrectly by clicking through a forwarded email, could end up viewing incorrect data associated with a different person.

To provide a more consistent customer experience, and as a security enhancement, Marketo is upgrading the conditions under which the form pre-fill will display known customer information. In short, pre-fill will only work when users clickthrough links in Marketo emails, demonstrating that they have ownership of the email address associated with the known person record. Below is a list of different scenarios and how form pre-fill will work moving forward.

Please note, these changes to form pre-fill will not affect any other functionality of Marketo Forms, including the progressive profiling feature.

Resolution resolution

For technical assistance contact Marketo Engage Customer Support.