SAP ABAP Program RFREORCANCELRS (Reversal of Reservations) is using

• Class (8)
• Data Element (11)
• Table/Structure Field (85)
• Function Module (4)
• Interface (10)
• Message Class (1)
• Message Number (1)
• Class Method (27)
• Program (3)
• Table (12)

#	Object Type	Object Name	Object Description	Note
1	Message Number	REISCA - 019	Period/key date: to-date is before from-date