...
8. The Operations page appears. Click the Add new operation link to create an operation. Select a query to be executed when this operation is called. For example,
Click Save once done. For example,
8.
9. The operation will be listed in the operations page. 
The Data Service configuration is done. Click Finish. (You can continue to add resources by clicking the Next button if you like)
910. You will be navigated to the "Deployed services" page.
From here, you can manage your service.