# Troubleshooting guides for Microsoft OAuth2 Connections

- [How to fix "Authorization Was Interrupted" error](/email-this-issue/email-this-issue-for-jira-server-data-center/documentation/administration/mail-server-connections/microsoft-with-oauth2/troubleshooting-guides-for-microsoft-oauth2-connections/how-to-fix-authorization-was-interrupted-error.md)
- [How to fix "BAD User is authenticated but not connected" error](/email-this-issue/email-this-issue-for-jira-server-data-center/documentation/administration/mail-server-connections/microsoft-with-oauth2/troubleshooting-guides-for-microsoft-oauth2-connections/how-to-fix-bad-user-is-authenticated-but-not-connected-error.md)
- [How to fix "401 Unauthorized" error](/email-this-issue/email-this-issue-for-jira-server-data-center/documentation/administration/mail-server-connections/microsoft-with-oauth2/troubleshooting-guides-for-microsoft-oauth2-connections/how-to-fix-401-unauthorized-error.md)
- [How to fix "key expires\_in " error](/email-this-issue/email-this-issue-for-jira-server-data-center/documentation/administration/mail-server-connections/microsoft-with-oauth2/troubleshooting-guides-for-microsoft-oauth2-connections/how-to-fix-key-expires_in-error.md)
- [How to fix "Need admin approval" error](/email-this-issue/email-this-issue-for-jira-server-data-center/documentation/administration/mail-server-connections/microsoft-with-oauth2/troubleshooting-guides-for-microsoft-oauth2-connections/how-to-fix-need-admin-approval-error.md)