SAP ABAP Table BAPIUSEXTID_LINE (External ID of a User) is used by

• Class (1)
• Function Module (2)
• Program (1)
• TTYP (1)

#	Object Type	Object Name	Object Description	Package	Structure Package	Software Component
1	Function Module	SUSR_USER_EXTID_GET_ALL	SUSR_USER_EXTID_GET_ALL	SUSR	BASIS	SAP_BASIS
2	Function Module	SUSR_USER_EXTID_SET_ALL	SUSR_USER_EXTID_SET_ALL	SUSR	BASIS	SAP_BASIS