# User settings
This is the User configuration screen:
From this screen you can:
* Add and remove users
* Resend invitation emails
* Change a user's permission level
* See when each user was last active on the TicketLog platform.
* Select if users must be invited or able to self-signup to the service desk themselves
* Specify Accepted Domains, which restrict new users to an email address that belongs to one of the specified domains.
* Select if Moderators can click the 'Open in Azure DevOps button', which is helpful if your moderators have their own Azure DevOps accounts.
{% hint style="info" %}
The maximum number of permitted users depends upon your TicketLog tier. Exceeding the limit will disable your service desk.
{% endhint %}
## **Single Sign On (SSO) with Entra ID**
TicketLog recently added support for Single Sign On (SSO) with Entra ID.
For information, please refer to: [2025.05.21: Single Sign On (SSO)](/release-notes/2025.05.21-single-sign-on-sso.md)
SSO is only available on the TicketLog Pro tier. To enable SSO on your service desk, please contact [TicketLog Support](https://ticket-log.com/Contact).
## **Add a user**
* Click 'Add User' button
* Enter email address and select a permission level in the following form:
* **Optional:** select whether an invitation email should be sent to the new user
* Click 'Add user' to add user to the service desk
{% hint style="info" %}
The new user's email address must comply with the **Accepted Domains** setting if it has been applied.
{% endhint %}
## Remove a user
* Click the drop down arrow next to the user and select 'Remove user'
* In the popup window, click 'Remove user' to confirm removal of the user
{% hint style="info" %}
You cannot remove yourself from a service desk.
{% endhint %}
## Change permission level
* Click the drop-down arrow next to the user and select 'Change permissions'
* In the popup window, select the new permission level:
* Click 'Save changes' to confirm the change
{% hint style="info" %}
You cannot remove or change permission level of the Owner of a PRO Service Desk
{% endhint %}
---
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