Processes published in one BPM Web Applications context can call processes or sub-processes published in a different BPM Web Applications context. The called or remote processes are called external processes and the process execution engine on which they reside must be configured to receive calls from the originating or calling process.
To configure a process execution engine to accept external process calls:
In the left pane of Process Administrator, select Engines.
On the Engines page, click the Name of the process execution engine on which the called process resides.
On the Engines | Edit Engine enginename page, click the Services tab.
On the Services tab, under IPC (Inter-process Communication), select the checkbox to Enable IPC Service.
Enter an IPC Service Port number.
Specify the maximum number of Incoming Connections that should be allowed on the IPC port.
Click Save.
Stop and re-start the BPM Web Applications to make sure the changes are implemented.
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