There are several reasons for a file not to import into your system to narrow down the root cause of this C-series DDM provides a log file with relevant information for you when the import fails. Steps to locate these logs are below.
We recommend that a member of your I.T helps with this as access to the server is required.
Log onto your C-Series DDM application server and navigate to:
<Install directory> C:\CSeries\subsystems\directdebit\pco\log
This will show you the log file of every PCO task that has run. Look down the list to identify the time the import was actioned and then open the log. This will explain why the import failed, however if you still need assistance with this please contact support on 01189 258 250 option 2 or via email@example.com