Don’t add any content to the Plex share. That’s off limits and there’s tons of hints / notes in the folder that tell exactly that.
If your content doesn’t show you got an issue with your permissions. That means the local (DSM) user called plex does not have permissions to see the content of your shares.
- Open DSM’s control center
- Go to the
Sharessection - Select the applicable shares and edit their permissions
- Grant the user
plexread (and write) access - Retry adding the content to your library (scan library files)