If all the required configuration is already done then why would you need "steps", I'm confused... The only thing that's missing here is basic troubleshooting. "Idoc not generated" could mean 1001 things. Before you can get an IDoc at least output needs to be generated. Did you get that part to work? Is there an error message?
Kindly be more specific when posting questions on SCN and make sure to do some research before posting.