Which of the following statements is true regarding the Program Command shape?

The Program Command shape in Boomi is a versatile tool used to execute commands on the server where the process is running. One of its key features is its ability to support both system commands and stored procedures, allowing developers to integrate a wide range of functionality within their processes.

When using the Program Command shape, users can execute command-line instructions or run scripts, as well as invoke stored procedures from databases. This capability expands the functionality of the Boomi platform by enabling complex operations that may not be achievable through standard connectors alone.

The other statements do not accurately represent the functionality of the Program Command shape. For instance, it does not specifically execute SQL SELECT statements, nor is it designed to handle scheduling processes directly. While it may return documents to a process flow, this is typically not its primary or only function, and the shape's main role involves the execution of commands rather than document management or flow control.

Therefore, the statement that it supports both system commands and stored procedures accurately reflects the capabilities of the Program Command shape, making it the true statement in this context.