SAP ABAP Message Number M8 - 304 (M8) is used by

• Program (2)

#	Object Type	Object Name	Object Description	Package	Structure Package	Software Component
1	Program	MWB01FEP	Include MWB01FEP	WBEF	APPL	SAP_APPL
2	Program	RCKM_MR21F01	Mehrstufige Abrechnung einr Beschaffungsalternative	CKMPC	APPL	SAP_FIN