Your User ID is the unique nickname you choose for signing in when you first register at eBay. You can change your User ID (once in a 30-day period).The following list includes characters and elements that you cannot include in a user ID.

• Do not use the @, &, ‘, (, ), <, or > character.

• Do not use spaces or tabs (You can use a hyphen to represent a space.)

• Do not use consecutive underscores __

• Do not use an underscore _, hyphen -, or period . at the beginning of a user ID (for example, -cardcollector )

• Do not use the word eBay (only eBay employees can use the word eBay in their user IDs).

• Do not use the letter e followed by numbers

• Do not use obscene or profane words that violate eBay’s guidelines. See eBay’s rules on profanity

• Do not use the same User IDuser ID as another seller or similar to an eBay Store name.

• Do not use a user ID that is similar to the name of an eBay Store

• Do not use a term that could be confused with a third-party’s trademark or brand (for example, CocaColaSeller)

• Do not use elements that imply an email address or Web address. You can use your brand name or ecommerce url, for example you own a store at littlebunny.com. You can use ‘littlebunny’ as your eBay id, without the .com, .net, .org, .edu and the likes. Nor can you use any variation of such (for example, _com or -com).