Can't sign in to outlook

Question

UTC Date: 2021-09-17T14:00:56.816Z
BootResult: configuration
Client Id: 0D67D2A6E47E497191D21E4A63297C4B
Session Id: eb20f174-6c95-494f-abc5-88a55dacedcf
Client Version: 20210829002.01
err: Microsoft.Exchange.Clients.Owa2.Server.Core.OwaUserHasNoMailboxAndNoLicenseAssignedException
esrc: StartupData
et: ServerError
estack: Error: 500
at i (https://outlook.office365.com/mail/:379:140890)
at https://outlook.office365.com/mail/:379:72596
st: 500
ehk: X-OWA-Error
efe: BYAPR11CA0063
ebe: BYAPR10MB2856
emsg: UserHasNoMailboxAndNoLicenseAssignedError

Says this when I log in?? Help

Answer 1

It needs an Exchange License and mailbox:
UserHasNoMailboxAndNoLicenseAssignedError

Check with your admin if you dont have access

Answer 2

Hi,
Many times the same thing happens to me, then I solve this problem in this way. You can also use these steps to resolve your issue manually:

1. Reset Outlook settings.
2. Verify the credential settings.
3. Remove the cached keys.
4. Allow Remember password.
5. Install the latest update for Outlook.
6. You can also generate a new Outlook profile.
7. If there is a need to be any update then go with it.

I hope some of these solutions will correct your error.

Answer 3

If like me, you have multiple Azure Active Directory accounts that you have to switch between, I expect Microsoft has decided to cached the credentials of an account that doesn't have an Office 365 / Exchange license and is trying to automatically sign you in. I am not sure where this information is cached as clearing cookies in Chrome doesn't help, however, going incognito does.

The way to force outlook.microsoft.com to use the correct credentials:

1. Navigate to www.office.com (You'll most likely be logged in as the offending user that doesn't have a mailbox license).
2. At the top right of the browser window, click the "Account Manager" icon. (Normally, it uses the initials of your first and surname. For me TR).
3. Make a note of the account that you are signed in as.
4. Click Sign out. It may show several accounts. Click the one you noted in the above step.
5. You should see a big black box (to the left) with the option Switch to a different account, below a red "Sign in" button.
6. Enter your UPN (email address) of the account that does have an Exchange license and click Sign in.
7. Complete any MFA challenge that you may have.
8. Click the OWA "app" (left-hand tool bar).
9. Microsoft may ask you to choose an account - click the UPN with the Exchange license.
10. You should be able to close the browser and next time you navigate directly to outlook.microsoft.com, you won't get the UserHasNoMailboxAndNoLicenseAssignedError Error.

What should happen, and happens for most of Microsoft's cloud applications is the user gets a prompt to choose which account they'd like to use. Microsoft clearly have a bug or haven't implemented this feature for when a user navigates directly to outlook.microsoft.com.

Answer 4

I just solved exactly the same issue. Let's go a bit backward, this issue was raised after I recovered a user from deletion. I missed out to assign any of the available licenses to that user hence this issue has appeared. So, I went to the admin center, found the user, and make sure that at least one license must be assigned to that user. As for me, it was just for testing purposes I was assigned Microsoft Power Automate Free license to my user. nevertheless, you probably need also to clean your browser cash in order to be all set!