SAP ABAP Table SFPREF (Reference fields) is used by

• Class (5)
• PINF (4)
• Program (3)
• TTYP (1)

#	Object Type	Object Name	Object Description	Package	Structure Package	Software Component
1	Class	CL_FP_DATA Method: INT_CHECK	Form Node: Data	SAFPAPI	BASIS	SAP_BASIS
2	Class	CL_FP_FB_INTERFACE_DATA Method: HANDLE_ALV_ON_F4	Form Builder: Interface Data	SAFPUI	BASIS	SAP_BASIS
3	Class	CL_FP_INTERFACE_CHECK Method: CHECK_XSD_DEFINITIONS	Form Objects: Check Form Interface	SAFPAPI	BASIS	SAP_BASIS
4	Class	CL_FP_INTERFACE_CHECK Method: CHECK_REFERENCE_FIELDS	Form Objects: Check Form Interface	SAFPAPI	BASIS	SAP_BASIS
5	Class	CL_FP_INTERFACE_PARAMETERS Method: GET_COMPUTED_REFERENCES	Form Components: Interface Parameters	SAFPAPI	BASIS	SAP_BASIS