Which type of module can only reuse Public elements from its Producer modules?

The correct answer is that a Consumer Module is the type of module that can only reuse Public elements from its Producer modules. In OutSystems, modules are structured for specific functionalities and responsibilities, and the Consumer Module is specifically designed to consume or leverage features and functionalities from other modules, known as Producer Modules.

When a module is designated as a Consumer Module, it focuses on reusing public elements such as actions, entities, and interfaces that have been made public in the Producer Module. This limitation ensures encapsulation and maintains a clear interface, allowing consumers to interface with producers efficiently while safeguarding the integrity of private elements within the Producer Modules.

The separation between consumer and producer roles helps organize application architecture, ensuring that changes in the Producer Modules do not inadvertently affect other parts of the application that are consumers, as long as the interfaces remain consistent.