SAP ABAP Program RFWEKR01 (Bill of Exchange Management) is using

• Class (1)
• Table/Structure Field (100)
• Function Module (7)
• Message Class (1)
• Message Number (13)
• Class Method (2)
• Program (2)
• Table (15)
• Transaction Code (1)

#	Object Type	Object Name	Object Description	Note
1	Function Module	CONVERT_DATE_TO_EXTERNAL	Conversion: Internal to external date (like screen conversion)
2	Function Module	REUSE_ALV_COMMENTARY_WRITE	List body comment block output
3	Function Module	REUSE_ALV_EVENTS_GET	Returns table of possible events for a list type
4	Function Module	REUSE_ALV_LIST_DISPLAY	Output a simple list (single line or several lines)
5	Function Module	REUSE_ALV_VARIANT_DEFAULT_GET	Read default display variant (description only, w/o field catalog)
6	Function Module	REUSE_ALV_VARIANT_EXISTENCE	Checks whether a display variant exists
7	Function Module	REUSE_ALV_VARIANT_F4	Display variant selection dialog box