Uploading files only when a folder is updated
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Can Auto FTP Manager watch a particular folder and start the file transfer if any new file gets added or a file gets modified?
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Yes, Auto FTP Manager can start a transfer when there is a folder change.
Add a new schedule for transferring files on a folder change. Auto FTP Manager will check the selected folder on the time interval you select. If there are any changes within the folder, the file transfer will begin.

Read more about the On Folder change schedule:
https://www.deskshare.com/help/afm/ScheduledProfiles.aspx