SAP ABAP Program LTB91FUC (Include LTB91FUC: at user-commands...) is using

• Table/Structure Field (51)
• Function Module (8)
• Message Class (2)
• Message Number (10)
• Table (9)
• Transaction Code (5)

#	Object Type	Object Name	Object Description	Note
1	Table	IONR	General Object Number
2	Table	REFH	References between CO object numbers, header table
3	Table	REFON	References between object numbers (CO object no.)
4	Table	REFWRKH	List Data References: Header
5	Table	REFWRKO	List Data References: Objects
6	Table	RSPARAMS	ABAP: General Structure for PARAMETERS and SELECT-OPTIONS
7	Table	VTBFHA	Transaction
8	Table	VTB_CH	Netting: Header
9	Table	VTB_CP	Netting: Positions