Method to Get Reporter: New BP if none with same E-mail address
Automatically synchronize: check the box
Click on 'Continue' (Note, that SAP Solution Manager now tries to connect to the web service exposed by aqua. When this fails, an error is shown at the bottom of the window and the external service is not created)
Select the row with your service desk
Click on 'Generate Default Mapping' (the red/white circle icon)