SAP ABAP Message Number UMB - 239 (UMB) is used by

• Class (1)
• Function Module (1)
• Program (3)

#	Object Type	Object Name	Object Description	Package	Structure Package	Software Component
1	Class	CL_UMB_VALIDITY_SERVICE Method: SINGLE_PERIOD_CHECK	Process Validity Data	UMB	SEM-BW	SEM-BW