SAP ABAP Data Element IV_REFBN (Reference document number) is used by

• Table (4)

#	Object Type	Object Name	Object Description	Package	Structure Package	Software Component
1	Table	AIVBK - IV_REFBN	IVBK change document	FVVI	APPL	SAP_FIN
2	Table	IVBK - IV_REFBN	Incidental expenses collector-Document header	FVVI	APPL	SAP_FIN
3	Table	IVBPS - IV_REFBN	Report Writer Structure: Incid.expenses collector-Doc.	FVVI	APPL	SAP_FIN
4	Table	RVIAESUM - IV_REFBN	Structure for calculation unit amount totals	FVVI	APPL	SAP_FIN