SAP ABAP Program MFLQQRMAINTS21 (Include Screen 201) is using

• Table/Structure Field (23)
• Table (4)

#	Object Type	Object Name	Object Description	Note
1	Table	BKPF	Accounting Document Header
2	Table	BSEG	Accounting Document Segment
3	Table	KNA1	General Data in Customer Master
4	Table	LFA1	Vendor Master (General Section)