Placeholders are used to display reference information regarding the value to be entered into a specific Field. They can be added to Fields via the Field Editor. This can help your team members more accurately fill out more complex fields in your Creative Brief and Forms.
In the below example, the placeholder is asking the question to enter "What the Budget is for the Project?" is when creating a Content Item.
When a Content Item is created the placeholder will display this question before a user selects or enters an option within the Field.