If someone comes to your page via a Quentn link, the data (e.g. email address, first and last name), if known, will be saved in WordPress. To be GDPR-compliant, you can remove this user data from the WordPress database at any time.
Click on Quentn -> Integration -> Delete User Data.
Enter the email address of the contact whose information should be removed.
Nothing will be deleted in Quentn itself, even the access links will remain untouched.