The purpose of creating custom fields is to collect leads and data from participants of your contest. If you add your own code from a mailing list provider when creating a new contest you can simply map the fields you already made. However, if you decide not to use a mailing list provider you can still create your own custom fields that will collect data into WP Contest Creator which you can export later in the leads screen.
By default the email address field is always present and required.
Important: Email is the only mandatory field . Do not delete this field. If you accidentally delete this field uninstall the plugin and reinstall it to get back the email field by default.
Add New Custom Fields
You may also add a new filed by going to Contests > Click to edit the desired contest, then click on "Entry Form / Opt-in". And clicking “New” or “Edit” button to edit or create an existing contest form.
Then click on the tab labeled "My Custom Fields". There you will find all the fields currently available.
Field name – Here you can give your custom field a name for your reference.
Field label – The field label will display to visitors on the contest entry screen.
Field Type – You may also select a custom field type. This can be a Text box, …
Field Values – Values apply to the field type chosen and can be separated by commas for multiple values. For example if you created a drop down box field asking what their favorite color is you can enter the choices here such as red, blue, green.
Validation Rule – For advanced users you can set the validation rule of the custom field. This will ensure you get the required responses from your participants or that the information is valid.