SAP ABAP Table UST04 (User masters) is used by

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#	Object Type	Object Name	Object Description	Package	Structure Package	Software Component
1	Class	/GRCPI/CL_GRIA_AUTH Method: GET_USR_AUTH_COUNT	Authorization Object class	/GRCPI/GRIA_NW_AC	/GRCPI/GRIA_NW_STR	GRCPINW
2	Class	/GRCPI/CL_GRIA_NHROBJ Method: DEL_PROF_USER	Class for HR/Non HR Objects	/GRCPI/GRIA_NW_AC	/GRCPI/GRIA_NW_STR	GRCPINW
3	Class	/GRCPI/CL_GRIA_PROFILE Method: GET_USR_PROFILE_LIST	Profile Class	/GRCPI/GRIA_NW_AC	/GRCPI/GRIA_NW_STR	GRCPINW
4	Class	/GRCPI/CL_GRIA_PROFILE Method: GET_COMPOSITE_PROFILE	Profile Class	/GRCPI/GRIA_NW_AC	/GRCPI/GRIA_NW_STR	GRCPINW
5	Class	/GRCPI/CL_GRIA_PROFILE Method: GET_PROFILE_LIST	Profile Class	/GRCPI/GRIA_NW_AC	/GRCPI/GRIA_NW_STR	GRCPINW
6	Class	/GRCPI/CL_GRIA_PROFILE Method: GET_PROFILE_FOR_USER	Profile Class	/GRCPI/GRIA_NW_AC	/GRCPI/GRIA_NW_STR	GRCPINW
7	Class	CL_ESH_AU_AUTHORITY_UPDATE Method: IF_BADI_ESH_USER_AUTH~UPDATE_ALL_CLIENTS	Class for BAdI Impl.: BADI_ESH_USER_AUTH	S_ESH_ENG_AUTHORIZATION	BASIS	SAP_BASIS
8	Class	CL_ESH_AU_AUTHORITY_UPDATE Method: IF_BADI_ESH_USER_AUTH~UPDATE_SINGLE_CLIENT	Class for BAdI Impl.: BADI_ESH_USER_AUTH	S_ESH_ENG_AUTHORIZATION	BASIS	SAP_BASIS
9	Class	CL_ESH_AU_AUTHORITY_UPDATE Method: IF_BADI_ESH_USER_AUTH~UPDATE_USERS	Class for BAdI Impl.: BADI_ESH_USER_AUTH	S_ESH_ENG_AUTHORIZATION	BASIS	SAP_BASIS
10	Class	CL_GRAC_SOD_MATCHING_ENGINE Method: MATCH_PRMRULE_TO_AUTHS	SOD matching engine for risk analysis	GRAC_SOD	GRFD_MAIN	GRCFND_A
11	Class	CL_IDENTITY Method: PROFILE_CHECK_DELTA_AUTHORITY	Identity Class	SUSR_IDENTITY	BASIS	SAP_BASIS
12	Class	CL_IDENTITY Method: CHECK_PROFILES_INTERNAL	Identity Class	SUSR_IDENTITY	BASIS	SAP_BASIS
13	Class	CL_IDENTITY Method: PREPARE_PROFILE_SEGMENTS	Identity Class	SUSR_IDENTITY	BASIS	SAP_BASIS
14	Class	CL_IDENTITY Method: DELETE_INVALID_PROF_ASSIGNMENT	Identity Class	SUSR_IDENTITY	BASIS	SAP_BASIS
15	Class	CL_IDENTITY Method: PROFILE_WRITE_TO_SEGMENT	Identity Class	SUSR_IDENTITY	BASIS	SAP_BASIS
16	Class	CL_IDENTITY Method: PROFILE_ADJUST	Identity Class	SUSR_IDENTITY	BASIS	SAP_BASIS
17	Class	CL_IDENTITY Method: NODES_PREFETCH	Identity Class	SUSR_IDENTITY	BASIS	SAP_BASIS
18	Class	CL_IDENTITY Method: CHECK_REFERENCE_USER_INTERNAL	Identity Class	SUSR_IDENTITY	BASIS	SAP_BASIS
19	Class	CL_IDENTITY Method: PROFILE_INITIALIZE_UST04	Identity Class	SUSR_IDENTITY	BASIS	SAP_BASIS
20	Class	CL_IDENTITY_DB_PERSISTENCE Method: MODIFY_PROFILE_DATA_T04	Identity Persistence Class	SUSR_IDENTITY	BASIS	SAP_BASIS
21	Class	CL_IDENTITY_DB_PERSISTENCE Method: IF_SUID_PERSISTENCE_READ~READ	Identity Persistence Class	SUSR_IDENTITY	BASIS	SAP_BASIS
22	Class	CL_PRGN_TOOLS Method: PRGN_COPY_ASGM	Methods for User Comparison	S_PROFGEN_TOOLS	BASIS	SAP_BASIS
23	Class	CL_RSBPC_SERVICES Method: GET_USERS_BY_AUTHOBJ	BPC: General Utility Methods	RSBPC0	RS_BW_STRUPAK	SAP_BW
24	Class	CL_SLIM_USER_TYPES	Sytem Measurement: User Types	SLIM	BASIS	SAP_BASIS
25	Class	CL_SLIM_USER_TYPES Method: CHECK_REF_USER	Sytem Measurement: User Types	SLIM	BASIS	SAP_BASIS
26	Class	CL_SLIM_USER_TYPES Method: GET_USER_PROFILES	Sytem Measurement: User Types	SLIM	BASIS	SAP_BASIS
27	Class	CL_SUID_ROLE_HELPER Method: READ_PROFILES_FROM_DB	Help Class. Roles for Specific Methods	SUSR_IDENTITY	BASIS	SAP_BASIS