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

• Class (2)

#	Object Type	Object Name	Object Description	Package	Structure Package	Software Component
1	Class	CL_SIW_CHECK_RESULT	Result obejcts for check procedure	S_SIW_CORE	BASIS	SAP_BASIS
2	Class	CL_SIW_PROG_PRODUCER	Program Producer	S_SIW_PRODUCTION	BASIS	SAP_BASIS