SAP ABAP Message Number 26 - 420 (26) is used by

• Function Module (2)

#	Object Type	Object Name	Object Description	Package	Structure Package	Software Component
1	Function Module	CVAUTH_BOM_UPDATE	Bom update	CV	APPL	SAP_APPL
2	Function Module	CVAUTH_CHECK_AUTHORITY	Checking Authority	CV	APPL	SAP_APPL