Pass Entire URL of Page in Hidden Field to ActiveCampaign

We want to pass the entire URL of the in a hidden form field to active campaign. The idea is that the user is stepping / choosing through a series of pages (like a multi step survey) and will end up on a resulting page (one of 12 different pages) with a unique URL.

We want to put that URL in a custom text field and send to ActiveCampaign to record which page the form is submitted.

Or is there a simple way to record this using the ActiveCampaign Integration?

Thanks.