SAP ABAP Class CL_HUM_EXACTLY_ONCE (exactly once behaviour for a synchr. service) is using

• Class (16)
• Data Element (6)
• Table/Structure Field (9)
• Function Module (1)
• Interface (4)
• Class Method (10)
• Table (8)

#	Object Type	Object Name	Object Description	Note
1	Function Module	GUID_CREATE	Create GUID ('globally unique ID')