SAP ABAP Message Number WUF - 039 (WUF) is used by

• Class (2)

#	Object Type	Object Name	Object Description	Package	Structure Package	Software Component
1	Class	CL_WUF_CHECK_CONTEXT	Check Context	WUF_PERS	APPL	SAP_APPL
2	Class	CL_WUF_CHECK_PARA_TWUF_TRP	Parameter Check for twuf_trp	WUF_PERS	APPL	SAP_APPL