Step 1 : Click +New Experiment on the experiment listing page and choose Form Analytics.
Step 2 : Enter the experiment name.
Step 3 : Enter the experiment page URL and click Fetch Forms . This action will fetch all the forms available on a web page.
Step 4 : You can now choose any of the forms listed or add a form manually by entering the form ID or form name.
Step 5 : Provide the confirmation page criteria. This can be the URL of the webpage your visitors are taken to after they submit the form or it can be a custom event.
Step 6 : Click Activate .
NOTE: Make sure you have added the code snippet on all the web pages part of your experiment.