Admin items are a class of items that are hidden from users filling out your form. You can see them in results as well as edit them. They provide a method to implement "For Office Use Only" sections on your form, or other types of meta-data which are hidden from the user.
Any compatible item can be set as an Admin item by going to "Form->Edit", editing the item and then setting the "Admin Item" field to "Yes".
Admin items will be hidden to users when filling out your form and in Results Receipt emails. They will be shown in all results formats by default, including when you edit results and in public results. You can disable them from view by using Results Views.
The following items can be Admin items: