where does drop down list of item category come from in Servie contract item

Created by Jerry Wang, last modified on Apr 15, 2015

When you create Service Contract line item, you see there are several Item categories available in the drop down list.

The population logic ( how to find where those entries are configured in the customizing ):

1. find service product's Item Category group: SRVP
   
2. in the below customizing:
   
   click position button:
   
   and result found: