SAP ABAP Data Element AD_CUSAGE (Communication Usage: Key Field) is used by

• Class (20)
• Function Module (10)
• Interface (1)
• Program (17)
• Table (21)

#	Object Type	Object Name	Object Description	Package	Structure Package	Software Component
1	Class	/BOFU/CL_ADDR_BUFFER Method: RETRIEVE_COMM_USAGE	Special Buffer Class for DO Address	/BOFU/ADDRESS_DO	BS_REUSE	SAP_BS_FND
2	Class	/BOFU/CL_ADDR_BUFFER Method: MODIFY_COMM_USAGE	Special Buffer Class for DO Address	/BOFU/ADDRESS_DO	BS_REUSE	SAP_BS_FND
3	Class	/BOFU/CL_ADDR_ENCODE	Encoding routines for BAS Node Ids	/BOFU/ADDRESS_ADAPTER	BS_REUSE	SAP_BS_FND
4	Class	/BOFU/CL_ADDR_ENCODE	Encoding routines for BAS Node Ids	/BOFU/ADDRESS_ADAPTER	BS_REUSE	SAP_BS_FND
5	Class	CL_ADDR_ENCODE	Encoding routines for BAS Node Ids	S_ADDRESS	BASIS	SAP_BASIS
6	Class	CL_ADDR_ENCODE	Encoding routines for BAS Node Ids	S_ADDRESS	BASIS	SAP_BASIS
7	Class	CL_ADDR_MAIN	Memory Layer for the ESA-Service Provider of DO Address	S_ADDRESS	BASIS	SAP_BASIS
8	Class	CL_ADDR_MAIN Method: APPLY_COMM_DATA_CHANGES	Memory Layer for the ESA-Service Provider of DO Address	S_ADDRESS	BASIS	SAP_BASIS
9	Class	CL_ADDR_MAP_FROM_BAPIADDR	Convert BAPI structures	S_ADDRESS	BASIS	SAP_BASIS
10	Class	CL_BSP_ACCESS_MODEL_ADDRESS Method: READ_DATA_COMM	Access Class for Address	CRM_BSP_FRAME_SC_ADDRESS	ABA	SAP_ABA
11	Class	CL_BSP_ACCESS_MODEL_ADDRESS Method: READ_DATA_FLGDEFAULT_TD	Access Class for Address	CRM_BSP_FRAME_SC_ADDRESS	ABA	SAP_ABA
12	Class	CL_BSP_ACCESS_MODEL_ADDRESS	Access Class for Address	CRM_BSP_FRAME_SC_ADDRESS	ABA	SAP_ABA
13	Class	CL_BSP_ACCESS_MODEL_ADDRESS Method: MODIFY_DATA_FLGDEFAULT_TD	Access Class for Address	CRM_BSP_FRAME_SC_ADDRESS	ABA	SAP_ABA
14	Class	CL_BSP_ENCODE_OBJECT_KEY	Access Class for Address	CRM_BSP_FRAME_SC_ADDRESS	ABA	SAP_ABA
15	Class	CL_BSP_ENCODE_OBJECT_KEY Method: ENCODE_USAGE_KEY	Access Class for Address	CRM_BSP_FRAME_SC_ADDRESS	ABA	SAP_ABA
16	Class	CL_BSP_ENCODE_OBJECT_KEY Method: DECODE_USAGE_KEY	Access Class for Address	CRM_BSP_FRAME_SC_ADDRESS	ABA	SAP_ABA
17	Class	CL_BSP_ENCODE_OBJECT_KEY Method: IS_USAGE_KEY	Access Class for Address	CRM_BSP_FRAME_SC_ADDRESS	ABA	SAP_ABA
18	Class	FSBP_ESAMAP_N_ADDRESS_V1	SOA Node Mapping for Addresses V1 Node	FS_BP_FND_ESOA_MAPPING	BS_REUSE	SAP_BS_FND
19	Class	FSBP_ESAMAP_N_ADDRESS_V1	SOA Node Mapping for Addresses V1 Node	FS_BP_FND_ESOA_MAPPING	BS_REUSE	SAP_BS_FND
20	Class	FSBP_ESAMAP_N_ADDRESS_V1	SOA Node Mapping for Addresses V1 Node	FS_BP_FND_ESOA_MAPPING	BS_REUSE	SAP_BS_FND