SAP Function STOCK_CHECK - Stock posted to at least one plant ?

Parameter	Reference	Type	Length	Default	Optional	Text
AKTYP	T130M-AKTYP	C	1
MATNR	RMMG1-MATNR	C	18
WERK	MARC-WERKS	C	4

Parameter	Reference	Type	Length	Text
FLAGPOST	C	C	0