Creating a Material Master for a Service Product 
Prerequisites
You can create a task list of the type "general task list" for extensive service tasks whose operations and components are copied into the service order during service order creation. You define the exact service procedure in the general task list. The general task list can also be configurable.
For more information on creating a general task list, see
Creating Maintenance Task Lists.Procedure
– Basic data 1
Enter at least the material short text and the base unit of measure.
– Basic data 2
Set the indicator "Material is configurable" for a configurable service product.
– Sales: Sales organization data 1
Enter the issuing plant (planning plant) and the tax classification.

You specify an issuing plant so that the plant is copied to the service item in the sales order. If you do not specify a plant here, the plant must be entered in the service item so that the system can create a service order.
– Sales: Sales organization data 2
Use the item category group
– MRP 1
Enter the MRP characteristic.
Enter a strategy group for service orders. In the standard system, this is strategy group 84. This is required if a service order is to be generated automatically upon saving the sales order when creating a sales order with a service item. The system also determines the order type of the service order (for example, SM01) on the basis of the strategy group.

If you create a configurable service product, you must assign it to a configuration profile.
Logistics ® Materials management ® Material master ® Material ® Environment ® Configuration profile ® Create