We intend to store attachments for a list item on an external Document Management System (DMS). A SOAP web service exists for interacting with the DMS and we've received a WSDL for it.
How can I achieve the scenario where SharePoint is able to talk to the web service and send attachments to store them in the DMS automatically?
Will SharePoint be able to handle this itself or will it involve writing a client in the middle, and if yes, how will the pieces fit in?