The Additional Fields screen in the Add New Requisition wizard is displayed if one or more active additional fields were configured for use in the wizard in Recruiting Setup > Job Requisition Additional Fields.
The additional fields displayed in this screen are automatically assigned to the job requisition, and once you submit the wizard, they are displayed in the job requisition's Details tab. Any values that you enter in these fields in the wizard are populated in the Details tab by default, but you can add and update the additional field values for existing job requisitions at any time.
How you complete an additional field and whether it is set as required for a job requisition depends on how the field was configured. See Configure Job Requisition Additional Fields.