SAP ABAP Program LK23EF09 (Messages/Ranges/checks) is using

• Data Element (1)
• Table/Structure Field (28)
• Function Module (9)
• Message Class (1)
• Message Number (2)
• Table (4)

#	Object Type	Object Name	Object Description	Note
1	Table	COBK	CO Object: Document Header
2	Table	COEP	CO Object: Line Items (by Period)
3	Table	IONRA	General Object Number and Object Keys
4	Table	MESG	Message collector