SAP ABAP Class CL_RECD_CALC_RULE_21 (Calculation Formula - Periodic Reservation) is using

• Class (18)
• Data Element (2)
• Table/Structure Field (46)
• Interface (16)
• Message Class (2)
• Message Number (3)
• Class Method (39)
• Program (1)
• Table (5)

#	Object Type	Object Name	Object Description	Note
1	Program	IFRECAMSG	Macros for Messages, Trace, Date, etc. (Library)