Problem with function module BAPI_GOODSMVT_CREATE in background

Hi Experts,

I am facing problems with the function module BAPI_GOODSMVT_CREATE while I am sheduling the program in background. When I run the program online it is doing GR and creating the material documents successfully. But it is failing with the error "Deficit of PU Ordered quantity 98.566,270 EA : 600359 E203 0001" always. Please help me in this regard.

Thanks,

srinivas.