Which statement about entities is false?

The correct answer highlights that entities are not limited to memory storage; they are usually persisted in a database or other forms of storage systems. In the context of OutSystems, entities represent data structures that can be stored permanently, enabling the application to retrieve and manipulate that data as needed. While entities do utilize memory during runtime for performance reasons, their essential purpose is to facilitate data management, which typically involves long-term storage in a database.

The other statements are true: entities do have attributes that define their data schema, they indeed require an identifier to ensure uniqueness and facilitate data operations like updates and deletions, and they can be created, updated, and deleted, reflecting the dynamic nature of data management within applications.