SAP ABAP Program LRHV5F21 (Routines: Firmly Book/Cancel Business Event) is using

• Class (1)
• Table/Structure Field (70)
• Function Module (11)
• Message Number (1)
• Class Method (1)
• Table (11)

#	Object Type	Object Name	Object Description	Note
1	Class	CL_HR_PNNNN_TYPE_CAST	HR: CASTing for Pnnnn Structures