SAP ABAP Data Element WLF_PRE_GENERIC_DOC_NUM (Reference Document Number) is used by

• Table (4)

#	Object Type	Object Name	Object Description	Package	Structure Package	Software Component
1	Table	KOMSHDE - PRE_DOCUMENT	external shadow item structure	WLF_REUSE	APPL	SAP_APPL
2	Table	KOMSHDE_STD - PRE_DOCUMENT	standard part of external shadow item structure	WLF_REUSE	APPL	SAP_APPL
3	Table	WLF_S_SHD_EXT_DATA - PRE_DOCUMENT	Shadow Items: External Data (Standard)	WLF_REUSE	APPL	SAP_APPL
4	Table	WLF_S_SHD_PRE_DOC_ITEM_KEY - PRE_DOCUMENT	Reference Document Item for a Shadow Document Item	WLF_REUSE	APPL	SAP_APPL