> For the complete documentation index, see [llms.txt](https://docs.overleaf.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.overleaf.com/accounts-and-security/email-address-and-login-options/logging-in-with-group-sso/troubleshooting-group-sso-login-problems.md).
# Troubleshooting Group SSO login problems
This page suggests possible solutions for some of the errors that can be encountered when attempting a Group SSO login.
This email address isn't set up for SSO.
You may see this error if you have not linked your Overleaf account to your Group SSO identity. Before you can log in using SSO, you need to establish the connection between your Overleaf account and your SSO login. You can view more information on how to log in with Group SSO [here](/accounts-and-security/email-address-and-login-options/logging-in-with-group-sso.md).
User not in an authorized group, or similar errors
If you see an error that relates to authorization or access to Overleaf, it may be that your SSO identity has not been granted access to Overleaf. This is an issue that can be addressed by your IT Services team or someone who has access to the Overleaf application in your Identity Provider.
Server error
If you see an Overleaf error page, it may be that your SSO identity is missing some data that is expected by the configuration set up by your group administrator. Please report this problem to your group administrator and [Overleaf support](https://www.overleaf.com/contact).
Not receiving SSO setup email
The email notifications from Overleaf come from `welcome@overleaf.com`. Sometimes these emails can get sent to your Spam or Promotions folders instead of your Inbox. If you can’t find a notification from Overleaf, please check the Spam and other folders and ensure that you have not flagged these emails as spam or unwanted. If you can’t find the messages in folders that you can access, please check with your IT Services team to make sure that your inbox can receive all messages from `welcome@overleaf.com`. If you continue to have trouble receiving these emails, please [get in touch](https://www.overleaf.com/contact).
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