# Can usernames be numbers instead of Letters?

**URL:** <https://meta.discourse.org/t/can-usernames-be-numbers-instead-of-letters/213648>\
**Category:** Product Support\
**Created:** [January 2, 2022, 6:40pm UTC](https://meta.discourse.org/t/can-usernames-be-numbers-instead-of-letters/213648 "2022-01-02T18:40:50Z")\
**Posts on this page:** 1\
**Showing post:** 6

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**Author:** ![Jay91](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/jay91/32/135181_2.png) [@Jay91](https://meta.discourse.org/u/Jay91)\
**Post date:** [January 6, 2022, 9:53pm UTC](https://meta.discourse.org/t/can-usernames-be-numbers-instead-of-letters/213648/6 "2022-01-06T21:53:03Z")

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> [@Falco](#):
>
> When using [Discourse Connect](https://meta.discourse.org/t/13045) as your SSO, you are asking Discourse to delegate “all things login” to your Identity Provider of choice. In this case, it’s the job of your Identity Provider system to send Discourse the appropriate username for a user.

That sounds very clear.

Can i achieve the below, like we force the users to change the user name after logging in for the first time?  
simple a window pop`s up and ask the user to change the username or select a new one.

> [@Jay91](#):
>
> I can accept another option as well, can i force the users to select their username when initially create the account through the SSO?

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