SAP ABAP Message Number M8 - 844 (M8) is used by

• Function Module (2)
• Program (2)

#	Object Type	Object Name	Object Description	Package	Structure Package	Software Component
1	Function Module	BELEGE_ZUM_MATERIAL	All documents for one material without duplicates	MR	APPL	SAP_APPL
2	Function Module	MY_DOCUMENT_TYPE_CHECK	Prüfen der Belegart	MRY	APPL	SAP_FIN