Preparing The Internet Service 
You are in Customizing for the
internal service request under Cross-Application Components ® Internet / Intranet Services ® Internal Service Request ® Definition Of A Scenario ®
Define Scenarios. Before you can use the scenario in the intranet as an internal service request, you need to generate and publish an internet service.
After you have done this, you can process the request form.
See also:
Generate Service Publishing The Service Definition Of The Form