Function Module for ATP Check specific to BATCH

Hi All,

I have a requriement where I need to find the available stock for a material for a given plant and most importantly BATCH.

I tried using BAPI_MATERIAL_AVAILABILTY, but it returns the overall stock avaliable at the plant level irrespective where I mention the BATCH. In other words I can SEE in MMBE that the for the BATCH there is no UNRESTRICTED STOCK , however when i execute the Function module It shows me the total stock availabe at the Plant .

Please let me know if there is any fm that caters to my requirement.

Thanks

Srinivas