Hi Tamil,
Please go to transaction code SM58 and see if there is any failed LUW created for the FM : BBP_PD_SC_TRANSFER. If there is any Failed LUW with this FM try to execute the LUW again.
If you are getting the I1111 status again and again for all the shopping cart then there is some error in the PO creation step, to find the error debug the FM : BAPI_PO_CREATE1.
Regards,
Suresh