Guests can change all pre-filled details in the registration form during their registration. However, it may be desirable that the email address cannot be changed, for example if the invitation is personal and should not be forwarded. In that case, block the possibility that guests can change their email address in the following way:
- Go to Invite> Registration Form
- Click on the 'Form Fields' tab
- Click for the 'E-mail' form field
- Check the box 'This field cannot be changed'
- Click on the button 'Save and close'