document update

Updating file in alfresco

Has anyone used alfresco 5 with bonita 7.2 ?

I am able to upload files to alfresco but cant update them.

Can someone please tell me with example the configuration for CMIS connector to upload a new version of document.

Particularly what shall be filled on the connector configuration window for "Document" where it has heading "Enter the document to upload information" and fields "Document name" and "Remote document"