# SSO, WP Discourse and special characters in username

**URL:** <https://meta.discourse.org/t/sso-wp-discourse-and-special-characters-in-username/143716>\
**Category:** WordPress\
**Created:** [March 9, 2020, 5:01pm UTC](https://meta.discourse.org/t/sso-wp-discourse-and-special-characters-in-username/143716 "2020-03-09T17:01:57Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![simon](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/simon/32/339122_2.png) [@simon](https://meta.discourse.org/u/simon)\
**Post date:** [March 9, 2020, 5:26pm UTC](https://meta.discourse.org/t/sso-wp-discourse-and-special-characters-in-username/143716/4 "2020-03-09T17:26:26Z")

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With SSO disabled, I am able to create a Discourse account with `François` as a username. I am not able to create a WordPress account with that username. The error message I get on WordPress is “This username is invalid because it uses illegal characters. Please enter a valid username.”

Are you using a plugin on your WordPress site to allow for additional characters in usernames?

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_[View the full topic](https://meta.discourse.org/t/sso-wp-discourse-and-special-characters-in-username/143716)._