A form key is a unique id of the corresponding form. With this key, you are able to determine which form has already been opened and/or submitted. The following article will explain where you can find this form key.
Via the form overview page
Step 1: Feedback Forms
In the left-hand panel, go to ‘Data collection’ > ‘Feedback forms’.
Step 2: Copy Form
Click on the icon with three dots of the feedback item you would like the form key of. Select ‘Copy form key’. The form key, a number and letter combination, is now copied to your clipboard.
Via the form public landing page
Open the form builder and go to
In the public landing page link, you will find the unique form key at the end of the URL.