Friday, 5 February 2016

SharePoint Naming limitation in site names, folder names, and file names

This article lists the characters that you cannot use in the following names in Microsoft SharePoint:

  • Site names
  • Folder names
  • Server names
  • File names

Site names, sub-site names, or site group names

You cannot use the following characters anywhere in a site name, in a subsite name, or in a site or Active Directory group name:
  • Tilde (~)
  • Number sign (#)
  • Percent (%)
  • Ampersand (&)
  • Asterisk (*)
  • Braces ({ })
  • Backslash (\)
  • Colon (:)
  • Angle brackets (< >)
  • Question mark (?)
  • Slash (/)
  • Plus sign (+)
  • Pipe (|)
  • Quotation mark (")
  • You cannot start a site name, a subsite name, or a site group name with an underscore (_) character or with the period (.) character.
  • When you create a site name, a subsite name, or a site group name, you cannot use strings that were already used to name managed paths.
  • You cannot use the period character consecutively in the middle of a site name, a subsite name, or a site group name.
  • You cannot use the period character at the end of a site name, a subsite name, or a site group name.


Folder names

You cannot use the following characters anywhere in a folder name or a server name:
  • Tilde
  • Number sign
  • Percent
  • Ampersand
  • Asterisk
  • Braces
  • Backslash
  • Colon
  • Angle brackets
  • Question mark
  • Slash
  • Pipe
  • Quotation mark
  • You cannot use the period character consecutively in the middle of a folder name.
  • You cannot use the period character at the end of a folder name.
  • You cannot start a folder name with a period character.
  • If you use an underscore character (_) at the beginning of a folder name, the folder will be a hidden folder.
  • Additionally, a folder that contains the string "_vti_" is reserved by SharePoint, and isn’t supported.
File names

You cannot use the following characters anywhere in a file name:
  • Tilde
  • Number sign
  • Percent
  • Ampersand
  • Asterisk
  • Braces
  • Backslash
  • Colon
  • Angle brackets
  • Question mark
  • Slash
  • Pipe
  • Quotation mark
  • You cannot use the period character consecutively in the middle of a file name.
  • You cannot use the period character at the end of a file name.
  • You cannot start a file name by using the period character.
  • If you use an underscore character (_) at the beginning of a file name, the file will be a hidden file.
  • File names and folder names may not end with any of the following strings: 
    • .files
    • _files
    • -Dateien
    • _fichiers
    • _bestanden
    • _file
    • _archivos
    • -filer
    • _tiedostot
    • _pliki
    • _soubory
    • _elemei
    • _ficheiros
    • _arquivos
    • _dosyalar
    • _datoteke
    • _fitxers
    • _failid
    • _fails
    • _bylos
    • _fajlovi
    • _fitxategiak
  • In addition, file names and folder names cannot start with the “_vti_” string, such as the followings:
    • _vti_cnf
    • _vti_pvt
    • _vti_bin
    • _vti_txt
MSDN Link: https://support.microsoft.com/en-us/kb/905231

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