SAP ABAP Data Element WLF_REF_TYPE (Reference Document Category) is used by

• Class (1)
• Function Module (6)
• Program (1)
• Table (33)
• View (3)

#	Object Type	Object Name	Object Description	Package	Structure Package	Software Component
1	Program	LWLF1F0D	Include LWLF1F0D	WZRE	APPL	SAP_APPL