Service and Product List 
All types of services that can be defined in a service contract or service plan, such as customer service, technical installation, training, and consulting.
Periodic services are services that are carried out regularly at certain intervals (counter-based and/or time-based service intervals). They are defined in service plans.
Services appear in the system as products of type service. You can define one product per contract item.
Even a complex service package that contains several individual services and service parts can be defined as a product in a service contract item.
In the product list belonging to a service contract item, services and service parts are entered that are in the service product, which is defined in the contract item. These services and service parts can be claimed in the course of the subsequent service order processing with reference to a service contract.
The product list can contain products, product categories, or a product range (partner/product range). It allows:
The proposal of services and service parts in the service order (see Service Contract Determination)
The function to call them from Service Contracts (Value Quantity)
NoteServices and service parts entered in the product list must exist in the system as products.
End of the note.
Integration
If a customer wants to claim a product, the service employee creates a service order. If this has been set up in Customizing, the system determines existing valid service contract items and proposes them to be assigned.
After the corresponding service contract item has been assigned, the services and service parts from the relevant product list are automatically proposed for transfer into the service order.
The service employee chooses one or more entries from the list that apply to the service order. For each product that is selected, an item is automatically created in the service order. The product data is copied into this item.
For more information, see Service Contract Determination.
Example
You define the service package standard winter check for car in a service contract item. This includes the following services:
Tire check/switch (Switch to snow tires, provided by customer, if necessary)
Headlight check
Battery check
Replacement of windshield wipers
It includes the following service part:
1 set of windshield wipers
You enter the listed services and service parts in the product list for the contract item.