SAP ABAP Message Number UCD0 - 006 (UCD0) is used by

• Class (3)

#	Object Type	Object Name	Object Description	Package	Structure Package	Software Component
1	Class	CL_UC_COMBINATION Method: IF_UC_COMBINATION~CHECK_SINGLE_EXISTENCE	Combination Object	UCD0	SEM-BW	SEM-BW
2	Class	CL_UC_COMBINATION_REPGROUP Method: IF_UC_COMBINATION~CHECK_SINGLE_EXISTENCE	Combination Object Reporting Group (derived)	UCD0	SEM-BW	SEM-BW
3	Class	CL_UC_DOCUMENT_ANALYZE_2 Method: CHECK_MSG_NOCOMBIEX_P	Document and Breakdown Check	UCD1	SEM-BW	SEM-BW