SAP ABAP Program ATPGACAL (ATP-Server: Kalender Funktionen) is using

• Table/Structure Field (5)
• Function Module (2)
• Message Class (1)
• Message Number (4)
• Table (4)

#	Object Type	Object Name	Object Description	Note
1	Table	MDCAL	Date fields for accessing calendar
2	Table	PLAF	Planned Order
3	Table	SCAL	Structure for factory calendar function modules
4	Table	T001W	Plants/Branches