SAP ABAP Program LIWO1F20 (Screen module - reference object) is using

• Data Element (3)
• Table/Structure Field (12)
• Function Module (2)
• Message Number (1)
• Table (3)

#	Object Type	Object Name	Object Description	Note
1	Table	RIHSTPX	Transfer table on selection of BOM items
2	Table	RIWO1	I/O table SAPMIWO1 (object connection)
3	Table	T160M	Message Control: Purchasing (System Messages)