SAP ABAP Table/Structure Field AFABD - VORNR (AFABD) is used by

• Class (1)
• Function Module (2)
• Program (72)

#	Object Type	Object Name	Object Description	Package	Structure Package	Software Component
1	Function Module	IBAPI_R_CHECK_PREDECESSOR	checks the changing of a predecessor activity	IWO_BAPI	APPL	SAP_APPL
2	Function Module	IBAPI_R_CHECK_SUCCESSOR	checks the changing of a successor activity	IWO_BAPI	APPL	SAP_APPL