Is it true that to configure a subprocess one must select the process model in the Setup tab?

To configure a subprocess in Appian, it is indeed necessary to select the process model within the Setup tab. This step is crucial because it allows developers to define the relationship between the main process and the subprocess. By selecting the appropriate process model, developers can specify the subprocess's inputs and outputs, ensuring that data flows correctly between the two processes. This configuration also allows for better management and performance tracking of the subprocess within the overall process architecture.

Neglecting to select the subprocess process model in the Setup tab would lead to an incomplete configuration, resulting in a lack of clarity in the process flow and potential difficulties in automation and execution of the process logic.