IT service requests Configuration

[indaka]

I have been testing the OTRS 2.4 with ITSM 2.11 for our company and found there is not much for the customers to request for Services.
Our requirement is to have a list of items available to the customers and it should go through a approval process before the service teams assign the services for the customers.
One service may be supported by more than one support groups/queues. Any configuration guide will be greatly appreciated.

Thanks

[jojo]

Typically Customers requests Service via Servicedesk.

you need to create your Servicecatalog and SLAs and assign the Services to the customers (or set them to default services) via Admin Frontend