Consider the following Server Action. What happens if the GetEmployeeById Aggregate does not return any record?

The choice indicating that the RecordNotFound flow is executed when the GetEmployeeById Aggregate returns no records is correct, as this flow is specifically designed to handle situations where a request for data does not yield any results. In OutSystems, an Aggregate is a way to query data, and when a query returns no records, rather than generating a generic error, the platform can capture this scenario and execute a defined flow that handles 'not found' situations, allowing developers to manage user experience gracefully.

By having a dedicated RecordNotFound flow, application developers can provide meaningful feedback to users or trigger alternative processes, thus enhancing the application's robustness. This flow can be used to show a message that informs the user that the employee with the specified ID does not exist, for example.

The other options address errors that arise from exceptions, which are not applicable in this scenario. This is an essential aspect of application development, ensuring a smooth user experience even when the expected data is not available.