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  • I would use a[n] [Remote] Event Receiver for this. You can either perform a regex check and allow or deny the item to be added, or manipulate the file name to conform to your specs. Commented Oct 26, 2018 at 15:26
  • Hello, yes. I need this. I Will use Event Receiver. Sorry my english isn't good Commented Oct 29, 2018 at 19:54