web
You’re offline. This is a read only version of the page.
close
Skip to main content

Announcements

Welcome to the Power Platform Communities
News and Announcements icon
Community site session details

Community site session details

Session Id :
Power Platform Community / Forums / Power Automate / Outlook Web Access Err...
Power Automate
Suggested Answer

Outlook Web Access Error - UserHasNoMailboxAndNoLicenseAssignedError

(0) ShareShare
ReportReport
Posted on by CU04010446-0 2 Power Up Champ - 2025

Hi,

I'm encountering an issue while trying to log into Outlook Web Access (OWA) using my Microsoft account. I receive the following error message:

UserHasNoMailboxAndNoLicenseAssignedError

Here are the details from the error log:

  • UTC Date: 2025-02-10T13:27:18.206Z
  • Client Id: 8DA636352CAA46A196E34AEC477803B4
  • Session Id: 1e858eb9-41ba-4dba-bb97-d0e2c093b841
  • Client Version: 20250131002.10
  • Error Code: 500
  • Error Message: Microsoft.Exchange.Clients.Owa2.Server.Core.OwaUserHasNoMailboxAndNoLicenseAssignedException

Steps Taken So Far:

  1. Tried logging in using different browsers.
  2. Cleared cache and cookies.
  3. Verified my Microsoft 365 subscription is active.
  4. Confirmed that my account is still active.

Questions:

  • What causes this error?
  • How can I resolve this issue and regain access to my Outlook mailbox?
  • Is this related to a license issue? If so, how do I check and fix it?

Any help would be greatly appreciated!

Thanks in advance.

Screenshot (26).png
Categories:
Using flows
I have the same question (0)
  • Suggested answer
    Pstork1 Profile Picture
    Pstork1 69,110 Most Valuable Professional on at
    Outlook web access is part of Office 365. You'll need a Work or School Account to access it.  For a Microsoft Account you would use Outlook.com.

    ----------------------------------------------------------------------------------
    If this Post helped you, please click "Does this answer your question" and give it a like to help others in the community find the answer too!

    Paul Papanek Stork, MVP
    Blog: https://www.dontpapanic.com/blog
     

Under review

Thank you for your reply! To ensure a great experience for everyone, your content is awaiting approval by our Community Managers. Please check back later.

Helpful resources

News and Announcements

Welcome to the Power Platform Communities

Quick Links

Introducing the 2026 Season 1 community Super Users

Congratulations to our 2026 Super Users!

Kudos to our 2025 Community Spotlight Honorees

Congratulations to our 2025 community superstars!

Congratulations to the February Top 10 Community Leaders!

These are the community rock stars!

Leaderboard > Power Automate

#1
Haque Profile Picture

Haque 557

#2
Valantis Profile Picture

Valantis 328

#3
David_MA Profile Picture

David_MA 264 Super User 2026 Season 1

Last 30 days Overall leaderboard

Featured topics

Share your ideas and struggles with building Power Automate flows!
Survey: Power Automate mobile app
How to Ask for Help with Your Power Automate Workflow
Flows are not visible for users who sign in with their personal accounts
Start and wait for an approval action
Restore a deleted flow
List of actions cheat sheet for Power Automate Desktop
Question for everyone : How are you using Create Text GPT in AI Builder?
Welcome to the Power Automate forum!

Product updates

Microsoft Power Platform Community release plans