SAP ABAP Function Module WR21_START_SELECTION (Neue Suchhilfe Mehrfachselektion über Klassen) is using

• Class (1)
• Table/Structure Field (12)
• Function Module (2)
• Message Class (1)
• Message Number (2)
• Table (9)

#	Object Type	Object Name	Object Description	Note
1	Message Class	CL	Classification