Fill in the blank: A(n) _____ functions as the name for individual instances of a custom object.

In the HubSpot Data Integration certification, the primary display property is the correct answer because it is the specific field within a custom object schema designated to serve as the label or identifier for each record. While a "record" represents the instance itself and "type" refers to the object category, the primary display property provides the human-readable "name" that appears in the CRM's search results, index pages, and association cards to distinguish one individual instance from another. Defining this property is a mandatory step in the custom object creation process, ensuring that when users view the data, they see a meaningful title—such as a "Project Name" or "Subscription ID"—rather than a generic system ID.