SAP ABAP Table USAPREF (References to application objects for user) is used by

• Class (1)
• Function Module (5)
• Interface (1)
• Program (2)

#	Object Type	Object Name	Object Description	Package	Structure Package	Software Component
1	Function Module	ECP_SRV_AUTHORITY_CHECK VALUE(USRREFTYPE) LIKE USAPREF-OBJTYPE DEFAULT 'KNA1'	Check user authority for a specific object	EC_ESERVICE	PI_APPL	SAP_APPL
2	Function Module	ECP_SRV_PORTAL_ALV_NOTIF_READ	Wrapper for QNMA_PORTAL_ALV_MYNOTIF_ALM	EC_ESERVICE	PI_APPL	SAP_APPL
3	Function Module	SUSR_APPLREF_MODIFY_LINE	SUSR_APPLREF_MODIFY_LINE	SUSR	BASIS	SAP_BASIS
4	Function Module	SUSR_USER_APPL_OBJ_MAINTAIN	SUSR_USER_APPL_OBJ_MAINTAIN	SUSR	BASIS	SAP_BASIS
5	Function Module	SUSR_USER_APPL_OBJ_MASS_MAINT	Anwendungsreferenzen eines Benutzers pflegen	SUSR	BASIS	SAP_BASIS