To add fields to the Web-to-Lead form, do the following:
- Click Setup > Leads/Contacts/Cases Settings > Web-to-Leads/Contacts/Cases Form.
- In the Web to Lead/Contact/Case page, click Create New Form.
- In the Field Selection Section, select the fields' checkboxes that are to be displayed in the web form
Note:- The fields displayed here are those available in the particular module's (Leads/Contacts/Cases) Field list.
- To have custom field, the field should be first added in the particular module.