More About Maximum Length Limitations

Here’s a quick checklist of Maximum length limitations in SharePoint 2007

Entity
Max permissible size
Site Name
128 characters
Site URL
255 characters
Display name
128 characters
Connection string
384 characters
Email address
128 characters
Version numbers
064 characters
Virtual Server Friendly Name
064 characters
SQL Database Name
123 characters
SQL Database Column
128 charactersSQL Database Table Name 128 characters SQL Role Name 128 characters Server Name 128 characters Windows User Name 300 characters Windows Password 300 characters Dependencies per object 032 objects Zone enumeration value 004 zones Default SQL command timeout 300 seconds Number of simultaneous
workflows that can be run 015 Portal SitePortal site name  The portal site name is limited to 80 Unicode characters.
The portal site name can consist of all alphanumeric characters except for the following: \ / : * ? “” |
Portal site description  The portal site description is limited to 200 Unicode characters.
The portal site description can consist of all alphanumeric characters, as well as the following: # % * + \ | “” ? $ @ [ ] { } ⌂
Portal site logo  The URL for the portal site logo is limited to 256 ASCII characters.
The URL for the portal site logo can consist of all alphanumeric characters except for the following: # % * + \ | “” ? > < $ @ [ ] { } ⌂
The following file formats are supported for the graphics file: .gif, .bmp, .jpg, and .png. TIFF files are not supported.
Portal site URL  The URL for the portal site is limited to 255 characters for the entire URL, including virtual directories.
Account name for portal site owner  The account name is limited to 128 characters.
E-mail address for portal site owner  The e-mail address is limited to 255 characters.
Location for creating SharePoint sites  The URL for creating sites from the Site Directory is limited to 2,048 ASCII characters. In addition, no component of the URL, such as the virtual directory or virtual server, can exceed 128 characters.
The URL must end with /_layouts/language/scsignup.aspx.
Backward-Compatible Document Library (Web Storage System-Based) Document library friendly name  The friendly (display) name cannot exceed 100 characters in length. Alternate Portal Site Access MappingsMapping name  The mapping name has a maximum length of 64 Unicode characters and must not be null.
The following character limitations apply for the default, intranet, extranet, and custom URLs: Each URL has a maximum length of 255 Unicode characters and a minimum length of 5 characters. The user can enter the URL in any combination of uppercase and lowercase letters, but the URL is always saved in lowercase. Each URL must be different from all other URLs.
Content IndexContent index name  The content index name must be less than 50 characters.
The content index name cannot contain the following characters: + ~ # ' % * ( ) = [ ] { } | \ "" . ? / @ & or the euro symbol or a space.

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