Where Used List (Class) for SAP ABAP Data Element REFDOCNO_KK (Document Number in External System)

#	Object Type	Object Name	Object Description	Package	Structure Package	Software Component

1	Class	CL_FKKINV_BILLDOC_DISP	Document Display	FKKINV	FI-CA	FI-CA
2	Class	CL_FKKINV_BILL_DOC	Billing Document	FKKINV	FI-CA	FI-CA
3	Class	CL_FKKINV_BILL_DOC	Billing Document	FKKINV	FI-CA	FI-CA
4	Class	CL_FMCAINV_BAPIBILL_REVERSE	Reverse billing document	FMCA_INV	IS-PS-CA	IS-PS-CA
5	Class	CL_INV_BAPIBILL_REVERSE	Class for Billing document reversal	FSCR_INV	FI-CAX	FI-CAX
6	Class	CL_ISTINV_BAPIBILL_REVERSE	Reverse Billing Document	IS_T_INV	IS-T	IS-UT