You can add a subprocess to a process in a stage to call an existing flow in your application. By using subprocesses, you can compartmentalize functionality and simplify the presentation of a process in a case type.
On the Life cycle tab of Case Designer, hover over a process and click + Step.
In the palette that is displayed, click More.
Click Processes to display a list of flows.
To change which flows are displayed in this list, use the Relevant Records tab on the Application Inventory landing page.
Click the name of a flow and review the flow description that is displayed.
Click Select to add the flow as a subprocess in the current process.
If the flow accepts parameters, pass values for those parameters by entering values in the fields in the Parameters section of the contextual property panel.
Click Save.
At run time, the flow is run when the current process reaches the subprocess step in the sequence.