I'm implementing a Marketo instance into an org where they pass SFDC campaign IDs in the URL, in UTM parameters, for tracking purposes. Thus, when someone lands on a page and fills out a form a SFDC campaign ID is often present in the URL and is passed to a hidden field in the form.
What I'd like to do is take that SF ID and find a way to automatically put someone into the campaign when they come into Marketo. And, ideally, I'd like to do this dynamically. I.e. I don't want to have to create a smart campaign rule in Marketo for every new SF campaign. I'd want to grab that SF campaign ID and find a way to do it automatically.