Email Classic - US System - Issues with authorization while logging into O365 add-in

The issue is resolved. You should be able to log into the O365 add-in without authentication issues.

We apologize for the inconvenience this has caused. Please get in touch with us at support@staffbase.com in case you're still having any problems.

We have put a fix in place to resolve the issue, customers should be able to to log into the O365 app again. We will continue to monitor the systems until we are sure the issue is fully resolved.

Please let us know if you are still experiencing issues.

We are continuing to work with Microsoft to fix the authorization issue with the O365 Add-in, as some users are still experiencing difficulties when logging in.

For the time being if the O365 add-in is still not working, we would recommend using the Classic add-in for users using a Windows computer if possible, as the Classic add-in does not require authentication on the Microsoft side.

We will share further updates as soon as possible.

We have identified a potential root cause for the login issues affecting the O365 add-in. Our teams are currently testing a fix and continue to monitor the situation.

Initial findings suggest that a change on Microsoft’s side may be affecting how authentication works for some users. We are actively working to understand this behavior and are also in contact with Microsoft to clarify why the issue appears inconsistently and how we can best resolve it.

In the meantime, we recommend that affected users clear their browser cache and cookies, and perform a hard restart of their browser. This can already mitigate the issue in some cases.

We will share further updates as soon as possible.

We have identified a root cause, and are testing and monitoring a potential fix for this issue.

Affected feature: Email Classic O365 Add-in

Users are experiencing authentication issues when logging in due to the refresh token expiring with the O365 add-in.

Our teams are investigating and will work to resolve this.

For the time being, it is recommend to have all affected users clear their browser cache/cookies, and perform a hard restart of the browser. Some users have reported successful authentication after performing these steps.

We apologize for the inconvenience. If you have any questions regarding this topic, please reach out to our support at support@staffbase.com.