launch process chain after the event

Good afternoon.

I

need to set up the launch process chain after the event.

Next process - data from a web-service (XI) are loaded into the PSA data source. After request is received in PSA, I need to start the process chain.

I created an event in sm64, described the event call-in program through BP_EVENT_RAISE. In sm34 I am trying to schedule a job BI_PROCESS_TRIGGER is my chain processes. I do not understand how to do it? Probably need a schedule RSPROCESS in step?