SAP ABAP Data Element KKB_OBJNR (Summarization Object) is used by

• Class (3)
• Function Module (1)
• Table (3)

#	Object Type	Object Name	Object Description	Package	Structure Package	Software Component
1	Class	CL_COST_OBJECT_TREE	Cost Object Hierarchy: Hierarchy Display	KKBO	APPL	SAP_FIN
2	Class	CL_CO_PRODUCTION_TREE	Joint Production: Hierarchy Display	KKBO	APPL	SAP_FIN
3	Class	CL_SUMMARIZATION_TREE	Summarization Report CO-PC	KKBO	APPL	SAP_FIN