User can’t login, or password doesn’t work on LabelStudio Enterprise

Note: This is specifically for on-premise users. All other users should submit a Support ticket to troubleshoot further.

1. If the user registered with capitalized email letters, it might lead to this issue. To fix it, you should login as a superuser and replace their email with lowercase letters. Also you can achieve this using LS shell in the terminal (python3 [manage.py](<http://manage.py>) shell_plus):

User.objects.get(email='Capita@Lized.xx').update(email='capita@lized.xx')

1. If you use SAML SSO and your SAML accounts have capitalized emails, you should upgrade to LSE 2.4.0. The user emails will be fixed automatically at the next login attempt.