SAP ABAP Program LE20LF01 (Include LE20LF01) is using

• Data Element (1)
• Table/Structure Field (60)
• Function Module (6)
• Message Class (3)
• Message Number (5)
• Table (17)

#	Object Type	Object Name	Object Description	Note
1	Message Class	00	General Basis texts
2	Message Class	AH	IS-U billing (master data)
3	Message Class	AJ	Billing program