Names can contain only lowercase url-safe characters. These include lowercase alphabet letters, decimal digits, hyphen, period, underscore, and tilde. Max length is 255 characters
This only updates your name, whether it is activated or not. If you would like to deactivate your url, see /userpreferences documentation.
Mixmax Calendar name must be unique among all Mixmax users. The API will return an HTTP
400 error if the name contains invalid characters. It will return an HTTP
409 error if the name is already taken.