SAP ABAP Message Number NR - 401 (NR) is used by

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

#	Object Type	Object Name	Object Description	Package	Structure Package	Software Component
1	Class	CL_KW_STR_TREE Method: USER_COMMAND_WUSL_USEL_N	Structure Tree	SIWB	BASIS	SAP_BASIS