Form Prefill is not working

[Chris_Francis]

So I have tried everything.  But Forms never prefill on our landing pages.  Here is an example below of a form on a landing page.  The Landing page has no modifications after creation.  It is completely base Marketo Landing Page.  The form has no modifications.  Simply created and approved.

http://usinfo.roche.com/Landing-Page-Tests_CD-TEST-0004.html

I have checked my page.  The cookie _mkto_trk exists.  I have used the API to make a call and the cookie is mapped to my user.  But the form never pre fills.  

The Javascript looks like it is looking for an object or array at the following location window.mktoPreFillFields.  This variable is not written to the page in any of the javascript files loaded by Marketo.

Any suggestions or insight would be greatly appreciated.

[SanfordWhiteman · Accepted solution]

Make sure Prefill is enabled for both the form and the LP.

[Chris_Francis]

Thank You Sanford.  That wasn't the issue but pushed me to the resolution.  Form Fill had been turned off at the Admin level for Landing Pages.  Turned it back on and all is well.

[Anonymous]

Incredibly helpful! Thank you.