1. Select the form that you want to work on.
2. Click Manage Form in the form's settings window.
3. Select the applicable validation type from the Validator drop-down menu.
A validator means that when someone fills out this field, they can only enter valid information like : email,date,url etc...
4. Click Finish when done.
5. All changes to your website will take effect only after publishing your website.
6. We also recommend saving your website after making changes.