SAP ABAP Table ISU_BI_BILL_S_BI_ITEM (Lines of Billing Documents) is using

• Table (7)

#	Object Type	Object Name	Object Description	Note
1	Table	ERCHZ	Individual Line Items: Internal
2	Table	ERCHZ_I1	Substructure of document line items: Always filled data
3	Table	ERCHZ_I2	Substructure of document line items, device data
4	Table	ERCHZ_I3	Substructure of document line items, amounts and prices
5	Table	ERCHZ_I4	Substructure of document line items, rarely used fields
6	Table	ERCHZ_INT	Internal billing fields of ERCHZ
7	Table	ERCHZ_N	Substruct. for Numerical Fields ERCHZ/ERDZ