Custom Form Fill based on URL Parameters?
We let people register for our webinars through a marketo form. In this form they can choose the date they want to attend the webinar in a drop-down selector box. Is it possible to pre-select that drop-down selector to be one of the dates based on a url parameter that they come in on?
For example, let's say that the page is /webinars/register-101 and they have 4 webinars to select from in the drop-down with the default being "select"
But if they come in on this url: /webinars/register-101?webinarsession=4 -> I'd like for the default option in the drop-down to already be selected as the 4th session so they can just immediately hit submit without having to go through the picklist.