SAP ABAP Function Module ISAI_USER_CHECK_REFERENCE (Checks reference between user and (KNA1) customer) is using

• Data Element (6)
• Table/Structure Field (13)
• Function Module (3)
• Message Number (2)
• Table (8)

#	Object Type	Object Name	Object Description	Note
1	Table	BAPIAPREF	References to application objects for user
2	Table	BAPIBNAME	User name
3	Table	BAPIBNAME	User name	SOURCE REFERENCE(USERID) TYPE BAPIBNAME
4	Table	BAPIRET2	Return Parameter
5	Table	BAPIRET2	Return Parameter	SOURCE REFERENCE(RETURN) LIKE BAPIRET2
6	Table	KNVK	Customer Master Contact Partner
7	Table	USLOGOND	User: Logon Data Transfer Structure
8	Table	USR02	Logon Data (Kernel-Side Use)