SAP ABAP Message Number F2 - 091 (F2) is used by

• Class (2)
• Function Module (2)
• Program (3)

#	Object Type	Object Name	Object Description	Package	Structure Package	Software Component
1	Class	CMD_EI_API_CHECK	Customer Check APIs	CMD_INTERFACE	APPL	SAP_APPL
2	Class	VMD_EI_API_CHECK	Vendor Check APIs	VMD_INTERFACE	APPL	SAP_APPL