the system requirements can be found in the help portal. Here is a direct link to them: http://help.docuware.com/en/#b57853t55049n87396
how is the iPad app downloading documents from DocuWare to the device?
Auditing is now part of the DocuWare Configurations since version 7. You can find information on this here.
it looks like the file cabinet is not assigned to the document tray that the document is placed by DocuWare Printer.
Please check in document tray configuration which file cabinet is assigned to the tray.