Either Display label or Name input field will be a required field for the form field settings. This will be based on the form field

Name is required for the following fields

• Hidden field
• Paragraph

Display label is required for the following fields

• Single line input
• Multiple line input
• Number
• Checkbox
• Checkboxes
• Radio
• Dropdown
• Email
• Date
• URL
• File
• Captcha
• Button