Oracle SOA Suite 12c: Invoking a BPEL process via Enterprise Manager (EM)

After you logged in via http://yourhost:7001/em navigate to "soa-infra":

 Then choose "Deployed Composites":

 There you have to click on your composite (here: "Project1"):

 Choose "Test":

 Go to the bottom of the page and expand the payload:

 There you have  fill in your test string:

 

 And after a click on "Test Web Service"

The response is shown incl. the response time.

To list the audit trails goto "Home-> Flow instances

And choose "search" on the right side: