Which actions are necessary to use installed bases in cases?

Prerequisites for using installed bases in cases:

Assign Customer (A): Links the installed base to a business partner for context.

Active Status (B): Only active installed bases can be referenced in cases.

Why other options are incorrect:

C. Registered Product: Not mandatory (e.g., empty installed bases can exist).

D. Service Contract: Optional for entitlements, not core to installed base usage.

References:

SAP Help Portal: "Installed Base in Case Management".