Filter Sales document from ISU to CRM

Hi All,

We want to filter Sales document with certain Transaction type 'XXXX' to flow from ISU to CRM.

We tried setting filter in R3AC1, however, it does not have any provision to set filter in OLTP (check below screenshot)

Any idea how should we filter BDocs from ISU to CRM based on Transaction type (BUS_TRANS_MSG)

Thanks,

Ashish