SAP ABAP Function Module J_1A_VENDOR_CI_CHECK_00001020 (Check: Credit Invoice from this vendor?) is using

• Data Element (1)
• Table/Structure Field (12)
• Function Module (2)
• Message Class (1)
• Message Number (1)
• Table (6)

#	Object Type	Object Name	Object Description	Note
1	Table	BKPF	Accounting Document Header
2	Table	BKPF	Accounting Document Header	SOURCE T_BKPF STRUCTURE BKPF
3	Table	BSEG	Accounting Document Segment
4	Table	BSEG	Accounting Document Segment	SOURCE T_BSEG STRUCTURE BSEG
5	Table	LFAT	Vendor master record (tax groupings)
6	Table	T003_I	Document types