Unable to get into my email

Question

Unable to get into my email

Stephanie Couyoute 0

Message:


[Moderator note: Personally Identifiable Information removed]
BootResult: configuration
Back Filled Errors: Unhandled Rejection: Error: 500:undefined|undefined:undefined
err: Microsoft.Exchange.Clients.Owa2.Server.Core.OwaUserHasNoMailboxAndNoLicenseAssignedException

Ryan-N 16,135 Reputation points Microsoft External Staff Moderator

2026-10-09T19:56:00.6633333+00:00

Hi Stephanie,

I wanted to follow up and check whether the information I previously provided has helped resolve the issue you were experiencing.

If you have any updates regarding the issue or if anything remains unclear, please don't hesitate to let me know. Feel free to share any additional information with me. I am always happy to listen and provide further assistance whenever needed.

I look forward to hearing from you soon.

Kind regards,

1 answer

Your answer

Ryan-N 16,135 Reputation points Microsoft External Staff Moderator

2026-10-09T19:56:00.6633333+00:00

Hi Stephanie,

I wanted to follow up and check whether the information I previously provided has helped resolve the issue you were experiencing.

If you have any updates regarding the issue or if anything remains unclear, please don't hesitate to let me know. Feel free to share any additional information with me. I am always happy to listen and provide further assistance whenever needed.

I look forward to hearing from you soon.

Kind regards,

Answer 1

Hi Stephanie,

Based on the error code you provided:

UserHasNoMailboxAndNoLicenseAssigned

This error code indicates that the user account currently does not have a license assigned.

Please follow the steps below:

Note: If you are not an administrator of the tenant, please contact your organization's administrator (usually your IT department or the person who provided you with this account) for assistance with the steps below.

Step 1: Go to admin.microsoft.com and sign in with an administrator account.

Step 2: Select Users > Active users, find the affected account, and then click on the account.

User's image

Step 3: Under Licenses and apps, check whether an appropriate license has been assigned to the account.

If the account does not have a license assigned, please assign an appropriate license to the account.

User's image

If the account already has a license assigned, you can try removing the license, wait for about 5 minutes, and then reassign it. Wait another 5 minutes for the system to synchronize the information, and then check whether the error still occurs.

Step 4: Still under Licenses and apps, expand the Apps section and check whether Exchange Online is enabled for the account.

User's image

After completing the steps above, please check again to see whether you are still receiving the UserHasNoMailboxAndNoLicenseAssigned error.

I hope this information is helpful.

If you have any questions or need further assistance, please feel free to share them in the comments on this post so I can continue to support you.

I look forward to continuing the conversation.

If the answer is helpful, please click "Yes" and kindly upvote it.

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