A published event based process should be able to correlate data to the event instance from multiple external event groups.

HINT: EventProcessInstanceImportMediatorFactory.createEventProcessInstanceMediators is where the magic happens

ATs:

• Event source correlation works for event based processes with multiple external event groups as a source
• Event source correlation continues to work for event based processes with 'all' external event groups as a source
• Publish progress state should still update accordingly