SAP ABAP Program ATPGXCAL (Routines for Calendar Conversions) is using

• Table/Structure Field (7)
• Function Module (2)
• Message Class (1)
• Message Number (4)
• Table (3)

#	Object Type	Object Name	Object Description	Note
1	Table	ATPMSG	ATP: Message Structure
2	Table	ATPPLANT	ATP Server: Plant Data for Availability Check
3	Table	MDCAL	Date fields for accessing calendar