Profile Information Change

Dear @Andrew Carney,

I hope you’re having a good day.

Thank you for reaching out.

To understand what’s blocking the sign‑in more clearly, could you help confirm a few details about the affected user?

What is the exact error message shown when the user tries to sign in to Outlook on the web?

Is the user signing in with a work or school account (e.g. ******@company.com), or could they be accidentally using a personal Microsoft account?

Has this account been recently created, renamed, or had its domain changed?

Can the user sign in successfully to other Microsoft 365 services (such as portal.office.com), or is the sign‑in failing everywhere?

Is this affecting only this one user, or are others seeing the same issue?

Those details will help pinpoint whether this is a credentials issue, an account state issue, or something specific to Exchange/Outlook.

In the meantime, here are the steps I’d recommend checking on your side as an admin.

First, sign in to the Microsoft 365 Admin Center and locate the user. Verify that the user account is active, not blocked from sign‑in, and that the User Principal Name (UPN) matches what the user is attempting to use to sign in. Display name or profile card details don’t affect sign‑in, but the UPN does.

Next, confirm that the user has a valid Exchange Online license assigned. If the account exists but doesn’t have an Exchange license, Outlook on the web sign‑in will fail even if the credentials are correct.

After that, check whether the user is being prompted to reset their password or is subject to MFA or Conditional Access requirements they may not have completed yet. In some cases, Outlook appears to fail sign‑in when the user actually needs to complete an authentication or security step elsewhere first.

It’s also worth asking the user to try signing in to Outlook on the web directly via outlook.office.com in a private/incognito browser session. This helps rule out cached credentials or browser‑specific issues.

If all the above looks correct and the user still can’t sign in, the next step would be to review sign‑in logs in Microsoft Entra ID (if you have access) to see exactly why the authentication attempt is failing. That usually gives a clear reason, such as invalid username, blocked sign‑in, or policy enforcement.

Please understand that our initial response does not always resolve the issue immediately. However, with your help and more detailed information, we can work together to find a solution.  

Once you’ve had a chance to check these points and gather a bit more detail, feel free to reply back here and we can look at the next step together if needed.

Looking forward to hearing back from you with any updates or additional details. 

Warm regards, 

If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".    

Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.   

If the employee cannot sign in because profile details (such as name, photo, or contact info) are incorrect, those details must be updated from a place where account changes are allowed; they cannot be changed directly from the Outlook sign-in page.

For a work or school account using Outlook on the web:

1. Have the employee (or an admin, if the employee cannot sign in) open Outlook on the web and, once signed in, select the name or profile picture at the top of the page.
2. Select My account.
3. From there, update the profile photo or account information (such as contact details) as needed.
   • To change the photo: in My account, select the profile picture, then in Change your photo choose Upload a new photo, select the image, and choose Apply.
   • To change other account information: in My account, edit the available fields and save.

If the employee cannot sign in at all and the issue is that core account details (such as display name, job title, or sign-in address) are wrong or locked, those fields may be controlled by the organization’s IT or HR systems. In that case, the Microsoft 365 administrator or HR/IT support team must update the user’s information in the directory or admin center. If the employee is not allowed to change this information, contact the organization’s Microsoft 365 administrator or HR department to correct it so the user can sign in normally.

If the organization uses Outlook Web App with on-premises Exchange (Exchange Server 2013/2010/2016/2019):

1. In a browser, sign in to Outlook Web App using the URL provided by the email administrator.
2. At the top of the page, select Settings > Options.
3. In Options, select Account.
4. On the My account page, select Edit information and update the photo and contact information, then select Save.

If the employee still cannot sign in after the information is corrected, an administrator should verify the sign-in name and password in the appropriate admin tools and reset the password if needed.

References:

• Change your photo and account information in Outlook on the web
• Update your photo and account information in Outlook Web App
• Find the administrator for your work or school account