Assigning Service Contracts to Installed Bases 
Maintaining the object list of a service contract item, service plan item, or service contract quotation item gives you the option to display the contract services for objects or object hierarchies installed at the customer site.
For simplicity, the following text focuses on service contracts.
Example
You agree to a 24-hours-per-day, 7-days-per-week hotline as a service for a network installation at the customer’s site. The network installed base is entered in the object list of the contract item.
From installed base management, you can navigate to the appropriate contract according to assignment.
In addition, you can also maintain a product list in each service contract item. The information in the product list influences contract determination.
Process
In the object list, enter the installed bases or installed base components for which the contractual services defined in the service contract item can be claimed.
Result
The contract is assigned to one of the installed bases or installed base components entered in the object list of the service contract item. You can check whether there are contracts for installed bases or installed base components in installed base management.
When you select an installed base or one of its components, you see all the service contracts and service plans that exist for this installed base or component in the Service Contracts assignment block.
The system checks whether the following IDs are available in an object list:
ID of an installed base
ID of an installed base component
ID of an installed base built into an installed base
ID of an object and the object family
ID of a product
Note
You can also trigger a contract check if you have created service processes with installed bases as reference objects and set up manual contract determination.