Defining a Method for the File Transfer from the Source System 
To attach non-ABAP objects to a transport request, you must transfer these objects (files) to the CTS server on which Transport Organizer is located. You can transfer a file to the CTS server in the following ways:
You can use Transport Organizer Web UI to attach objects from the desktop (client) to a transport request.
You can use a mount directory or a shared directory. In this case, you must set the parameter NON_ABAP_WBO_INBOX and specify in which directory you want to search for the objects to be attached to the transport request. You can use Transport Organizer Web UI to attach these objects from the server to a transport request.
If your SAP application is closely integrated with CTS (that is, close coupling), you can attach objects directly from the application by default. The data is transferred to the CTS server using SAP Java Connector (JCo). In this case the parameter WBO_FILE_TRANSFER is set to Stream by default.
CautionIf you want to improve performance by transferring files using a share or a Network File System (NFS), you must set the parameter WBO_FILE_TRANSFER to Share.
End of the caution.