@SanfordWhiteman Are the steps any different for using this for internal landing pages, and does it matter if I host your code in Marketo? Trying to implement your solution, I could not get the data to persist. It may also be that I put the script on the landing page in the incorrect place. http://na-sj31.marketo.com/lp/538-CCU-524/pref_test.html
Also if I wanted to have this work going from the unsubscribe page to the preference page, would I need to add the DTO helper code to both pages?
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