For Control Center usernames, there are three things that are helpful to know:
- Usernames must be at least 8 characters long
- Usernames can contain letters or numbers
- Usernames should not contain special characters like $, !, %, etc. (@ and . are allowed—to accomodate an email address as a username)
If you enter a name and get a user already exists message, it means someone in our database has already reserved that name. You'll need to try another username. For example, if johndoe doesn’t work, try johndoe12 instead.
When you delete a user manually, the username remains unavailable for 30 days. After 30 days, you (or someone else) can reuse that username. Usernames that are automatically deleted from Control Center (after 12 months of inactivity) are available immediately after the user is deleted.