@Moaen: The option is to synchronize removal of the remote files to the local directory. So it does not do what you want.

If you want to remove the new files from the remote directory, you will have to modify the code. Quick solution is to add this after the $difference.Resolve call, when the action is DownloadNew (or DownloadUpdate, although it should not occur in your set up):

Hi,
I am using Keep Local Directory to update function to watch for the changes on the remote directory and reflect them to the local drive.

Under the options, I clicked on Delete files. But the files still appears on the remote server after the download.

Am I doing something wrong?

I'm not sure what you mean by "get the files on the remote server". Did you mean "delete"?
You might be looking for this:

(i.e. add the -delete to your first get command)

Hello I have written the following script to get files from the remote server and copy them to our local server, this is working fine. Now I want to also get the files on the remote server after they have been copied, but my get -delete isn't working, could someone help me modify my script please.