Usernames

Standards for choosing usernames for your customers

Usernames should consist of only the following characters

• Alphanumeric Characters (upper and lower case A-Z and numbers, ASCII only)

• A hyphen, but not the first character (-)

• An underscore, but not the first character (_)

• A period, but not the first character (.)

Minimum Length 3 characters. Maximum Length 24 characters. Unicode (other than ASCII) not permitted so no accents or non-Latin characters.

Regex [A-Za-z0-9][A-Za-z0-9\-\_\.]{3,23}

No other characters or spaces are permitted and you cannot use e-mail addresses as usernames.

Currently the entry requirements are lax to support historic requirements but you should follow the above rule anyway