SAP ABAP Program LIBOFFLRF58 (Check field revision level) is using

• Table/Structure Field (3)
• Table (3)

#	Object Type	Object Name	Object Description	Note
1	Table	DD03D	Dynpro fields for table fields
2	Table	IREF	Dummy structure with fields for purely formal DDIC refs
3	Table	WTY_IB42	IB: Detailed Data for Flat Rates