Invoice not getting posted in Backend

Hi,

I have created SC and the PO was created successfully in Backend.

I am able to create Confirmation as well for the same.

I am able to create Invoice and post it. Once after running BBP_GET_STATUS_2 & CLEAN_REQREQ_UP, if I check for Invoice the status was indicated as "Error in Process".

I did check the Idoc in SRM and they were processed from SRM.

When I check the Idoc status for the same in Backend R/3, an error message is getting displayed stating : "B1(252):The function module BAPI_IDOC_INPUT1".

can any one pls help me in resolving the issue.

Thanks,

Satya.