SAP ABAP Program MC27VIOK (PP and PI: Where-Used Lists/Mass Replace - OK-CODE Modules) is using

• Class (1)
• Table/Structure Field (14)
• Function Module (2)
• Message Class (1)
• Message Number (1)
• Table (5)
• Transaction Code (8)

#	Object Type	Object Name	Object Description	Note
1	Table	PLFHD	Dialogue structure PRTs in task lists
2	Table	PLFLD	I/O table for task list sequences
3	Table	PLKOD	I/O table for task list headers
4	Table	PLPOD	I/O table for task list operations and network activities
5	Table	RCA80	Where-used list for work centers in routings