process unprocessed messages

Dear All ,

               In standard RDS for Order to cash has an event for credit block. Once the block is set for credit block from ECC the status is changed of status.

       We have a customized action on the UI to set the same status to some other status.

              Now when the block is removed from ECC , it calls the class (/SAPTRX/CL_EH_EVENT_MSG_MODEL) and method PROCESS_UNPROCESSED_MSGS and it reporcesses the same event for credit block first. The call stack is from /SAPTRX/BAPI_EH_POST.

                 This changes the status of the credit block hence the manual status that i have set gets overwritten and my condition fails. How can I avoid the same ?

Thanks,

Shubh.