Not able to get the Items in Select and add products in Product Group setup under Service Catalog

Summary:

Not able to get the Items in Select and add products in Product Group setup under Service Catalog

Content (required):

I have to build a new Service Catalog of products. This is the first time we will implement Fusion Services module. At this time, none of the items are enabled for Service. What are key item attributes to be setup. I have enabled the item for Services and Also enabled Contract coverage ( set to Yes) under Services Tab of Item setup, but still the item is not coming up in the Select and Add window of the Product Group setup