BMC engineers has stated that this is a customization.
Hi, I have the same requirement! How can we send back a Signal message from an external system via REST API?
I understand that this is a customization, but what are the available methods and required body structure to accomplish that? Via /api/processes/signal ?
Whilst this is possible, it uses an internal REST endpoint (which you have correctly identified) - this is how Remedy also delivers the results back to DWP-C. It uses the process correlation id to pass information back into a Receive task.