Since the script I’m talking about, makes some changes to the synced files, this is not a job for Resilio Sync. For the sync job itself, I’m using SFTP, because this is the easiest to setup on all clients/platforms. I’m only interested how I could safely dedect, if the sync is finished and start the script to do it’s job’s. The tip with the changing file is nice. I’m using that for now. Absolute reliable so far, for this task.