Yes, you can offer your survey participants an opt-out option in the invitation email in the form of an opt-out link that you insert as a placeholder in the email template. This link allows respondents to withdraw consent to receive further survey email notifications.
Our default email template in the tool includes the opt-out link placeholder. You can use it as a guide.
The tool does not automatically provide an overview of which participants have used the opt-out function. Please feel free to contact us in this regard. We will be happy to provide you with the list for comparison upon request.
When it comes to inviting participants to take part in a survey, please note that a legal basis is required for writing to the participants. The processing of the e-mail address for the purpose of conducting a survey is only permitted if there is a legal basis.