SanfordWhiteman

A lead only gets his/her own data injected into the page. There's no leakage.

On that page, I don't see any onSuccess handler.I only see the default embed code:

If the user has their mailto: handler set to Outlook, then any mailto: link opens in Outlook (how do you know that your users are using that app?).You can't add attachments from the user's computer via a mailto: link. It would be a pretty obvious security violation when you think about it.

Easy peasy. Add a hidden form to the landing page. Form prefill injects all desired field values into the DOM. Read values out with JS + apply classes, set element styles, etc.

Well, you have an errrant "true;" in your code, so there's probably a syntax error. I hope you're looking at your browser's console/developer tools to see such things.The correct code is demoed here. The onSuccess is called as expected. However since that page doesn't have your GTM code, it fails...

I don't care about the Best Answer (okay, just a little bit) but want to show it can be done straightforwardly. When we use auto-submit forms we make sure the form is prefixed with "Hidden", "Silent", "AutoUpdate", etc. to set it apart. With the Munchkin call, that's also cool, but it means another ...

@John W You don't need !important because .mktoForm span.mktoButtonWrap.mktoSimple button[type="submit"].mktoButtonhas higher specificity than .mktoForm .mktoButtonWrap.mktoSimple .mktoButton@Mel P The CSS I posted is demoed here.If you need advanced CSS customization I think you may have to h...

@Nate O Easily done with a hidden field.MktoForms2.loadForm("//app-**01.marketo.com", "***-***-***", 148, function(form) { form.addHiddenFields({ LastFormURL : document.location.href }) });

@Charles T I don't see your question really being answered yet, despite this being "Solved."The most precise answer IMO is to create a Forms 2.0 form, which can easily set fields on the Lead using data from the query string. (When you add a hidden field, you always have the option to have the field ...

@Debbie M I didn't get the impression that @Naomi M was talking about "lookups" as in cross-referenced fields, but I could be wrong.@Naomi M I would add that if you really just want a big button that says "RSVP", you don't need to show the Lead their own details to update the Lead record. If they c...