Do not show Client the entire path to the website when adding a new FTP user
When a client adds a new FTP user and got to Options to limit where that FTP user can go they see the complete ftp path:
Limit the form to just /web and below. Most end users will be confused when confronted by this long string under options and it will just generate a support request.
By just showing / or /web then they can understand where to start the FTP users access