SAP ABAP Table ETRG_KEY (Key Fields of Billing Order) is used by

• Class (1)
• Function Module (11)
• Table (1)
• TTYP (1)

#	Object Type	Object Name	Object Description	Package	Structure Package	Software Component
1	Class	CL_ISU_BI_MAIN_INST Method: SUBINST_DISTREL_DOCS_ANALYZE	Bill Primary Installation	EE20	IS-U/CCS	IS-UT