Error in BAPI fo PR Creation

Dear Experts,

We are using std BAPI for creating purchase requisitions i.e. BAPI_REQUISITION_CREATE. It is used to create prs with acc assingment Q for WBS. System is giving error - Not possible to determine any consumption account. With using the same input if we use ME51N then there is no error means no problem in configuration or assignment side.

Please suggest how to overcome this since because of error we have no option than to use manual creation using ME51N.