There are two options to integrate Calendly into a Drupal page. To make sure that the UTM information is handed over to Calendly correctly, please follow the guidelines on this page.
Option 1: Using a button to open the form in a popup / overlay To do this simply add a link to the Calendly meeting URL to a button:
Option 2: Embedding the Calendly form directly - like we do it with Pardot formsPlease use following code to embedd the form and replace the example URL with the right one: