AD:

The AD Computer object must fill in the ManagedBy field with the Primary User

The AD User must be added to a AD User Group

SCCM:

System Discovery has to be extended with the ManagedBy field

User Discovery has to be extended with the Distinguishedname field

SCCM Collection Query:

select
SMS_R_SYSTEM.ResourceID,SMS_R_SYSTEM.ResourceType,SMS_R_SYSTEM.Name,SMS_R_SYSTEM.SMSUniqueIdentifier,SMS_R_SYSTEM.ResourceDomainORWorkgroup,SMS_R_SYSTEM.Client
from SMS_R_System where SMS_R_System.managedBy in (select
SMS_R_User.distinguishedName from SMS_R_User where SMS_R_User.UserGroupName =
“DOMAIN\\GG_SDC_Manufact_App_11.0_01.01_EN_INSTALL”) order by
SMS_R_System.Name