@cuimaple without a KNIME Business Hub you will face some kind of complexity. That being said I have created a sample workflow that would check the last date a file has been changed on a drive (here simulated using a local folder) - and if there has been a change compared to the last recored date a sub-workflow will be called and the new change date will be recorded in the CSV file. KNIME CSV writer has the option to append lines without writing the header. So it is suitable for recording such developments.
The main workflow will run every 10 seconds (you can change that to 5 minutes) and will run until you stop it due to a condition loop end that never will be met.
The information when the file was last modified will be checked with the help of the Files/Folders Meta Info – KNIME Community Hub - the remote connection (the blue connections) in this case is a local folder so the example can be run in a local environment but they can be substituted for a Sharepoint connection or other remote connection.
