Outlook Error 500 (UserHasNoMailboxAndNoLicenseAssignedError)

Question

Good Day Sir/Madam,

im adrian from indonesia, and we have some issue that our password has expired. but at we try to change the password we can not, it says that the password and username incorrect.

we can sign to another device use old password, but we cant change the password. cause if we want to access our account, we must change the password first.

is there any solution for this problem? thank you for reading this email. I hope your doing well...

best regards

adrian

Answer 1

Dear @Adrian Bargas

Thank you for contacting Microsoft Q&A Support. 

Following our review of the Outlook Error 500 you encountered; we would like to provide the following recommended steps to help resolve the issue: 

Step 1: Verify License Assignment 

1. Sign in to the Microsoft 365 Admin Center. 
2. Navigate to Users > Active users. 
3. Select the affected user account. 
4. Under Licenses and Apps, ensure that a valid license including Exchange Online (e.g., Microsoft 365 Business Standard, E3, or E5) is assigned. 
5. If a license is already assigned, please verify whether it is currently active. If the license is inactive, we recommend reviewing the subscription status and ensuring that any outstanding payments are resolved or a new subscription is purchased if necessary. 

Step 2: Reassign or Reapply the License 

If the license is missing or has recently been modified: 

• Assign the appropriate license to the user. 
• If a license is already assigned, try removing and reassigning it to refresh the mailbox provisioning process. 

Step 3: Allow Time for Mailbox Provisioning 

Once the license has been assigned or updated, please allow 1 to 2 hours for the mailbox to be fully provisioned. After this period, the user may attempt to access Outlook again. 

If the mailbox is still not provisioned after 2 hours, we recommend contacting the Microsoft 365 Admin Center for further investigation into your subscription and mailbox status. 

Step 4: Clear Browser Cache (for Outlook on the Web) 

• In some cases, cached browser data may interfere with access: 
• Clear the browser’s cache and cookies. 
• Alternatively, try accessing Outlook using a private/incognito window. 

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