Editing BDoc in CRM

Hi Experts,

I need to Edit the XML body of the Bdoc and then reprocess the same Bdoc.

I have field in the Bdoc whose value is needs to be changed. This field is present in the XML content of the Bdoc.

The extended data and the classical data doesnot contain this fields.

Through SMW19, i can edit the extended and classical part of the Bdoc but i am unable to edit the XML part of the BDoc.

Can you please help me know how can i do this.

Thanks,

Vicky.