SAP ABAP Message Number UCUW - 019 (UCUW) is used by

• Class (2)

#	Object Type	Object Name	Object Description	Package	Structure Package	Software Component
1	Class	CL_UC_VAL_MSG_GUI Method: IF_UC_CUST_GUI_EXT~CALL_PAI_COMMAND	Validation: Messages - GUI	UCFV	SEM-BW	SEM-BW
2	Class	CL_UC_WB_NAV_MAIN Method: IS_OK_TO_CALL_TRANSACTION	SEM-BCS Workbench: Technical Navigation	UCUW	SEM-BW	SEM-BW