PO in held status in case any error in shopping cart

Hi,

I am creating one shopping cart in SRM and my requirement is to create PO in HELD status in case of any error for that shopping cart in ECC. But PO is not getting created at all 😕. I have mark MEMORY_UNCOMPLETE import parameter as X in BAPI_PO_CRETAE1 BAPI, for making the PO in held status. But as i think control is not even coming in this BAPI. Please suggest how can i proceed, i m new in SRM and do not much.

Regards,

Pankaj Aggarwal