Issue with BIPI_PO_CREATE1

Hi ALl,

When i am trying to create PO by using T.Code me21n ,PO created and in PO items under delivery tab i got schedule quantity and committed quantity.But when i am using BAPI_PO_CREATE1 to create PO i am unable to get the committed quantity in PO items under delivery tab .

please help me ,how to get committed quantity by using BAPI_PO_CREATE1 .

Regards,

Upender