This variable is a string, and is optional. Specify this variable if you want to pass the document to a business process. If you expect to receive more documents in the same conversation, make sure the value you specify for ConversationID is reproducible for those documents. The same ConversationID is being used in all the transactions.

If you do not want to pass the document to a business process, add a variable to the pipeline called prtIgnoreDocument with the value true.