I can't remove additional external storage provider from OWA

Anocha Yudhthonglang 0 Reputation points
2025-07-29T13:00:17.57+00:00

I did in OWA at Settings\Mail\Attachments\Storage Accounts\Other Accounts for testing purposes. I want to remove the external account from OWA, and I received the error message below.

User's image

User's image

Please advise

Outlook | Web | Outlook on the web for business | Settings
0 comments No comments
{count} votes

3 answers

Sort by: Most helpful
  1. Tamara-Hu 1,950 Reputation points Microsoft External Staff Moderator
    2025-07-29T13:59:28.0633333+00:00

    Hello @Anocha Yudhthonglang

    Thank you for posting your question in the Microsoft Q&A forum. I understand your inconvenience when facing this issue.  

    To understand your situation better, can you confirm this information about: 

    In the meantime, you can try these suggestions to check if they can resolve your issue: 

     Use Incognito/Private Mode 

    • Click the three dots (⋮) in the top-right corner. 
    • Select New InPrivate/New Incognito Window. 
    • Visit Outlook and try removing the account. 

    Try a Different Browser 

    You can try open OWA on another browser and remove the account again. Sometimes browser-specific issues can interfere with Outlook settings. 

    Clear Cookies and Cache 

    If you're using Microsoft Edge 

    • Click the three dots (⋮) → Settings. 
    • Go to Privacy, search, and services. 
    • Under Clear browsing data, click Choose what to clear. 
    • Select Cookies and Cached files, then click Clear now. 

    After doing any of these, go back to Outlook web, sign in, and try removing the external account again. 

    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. 


    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. User's image


  2. Anocha Yudhthonglang 0 Reputation points
    2025-08-06T18:27:38.08+00:00

    Hi @Tamara-Hu ,Thank you for the follow up. I was able to disable the external storage provider from a user's Outlook Web App, However, When I enabled the external storage provider back to default, I am getting the same message below.
    User's image


  3. Tamara-Hu 1,950 Reputation points Microsoft External Staff Moderator
    2025-08-07T07:28:58.12+00:00

    Hi @Anocha Yudhthonglang,
    Thanks for your response.

    Even though you've re-enabled the policy, the backend might still be catching up. This can take up to 24 hours. Please try again after waiting a full day.

    Sometimes, the account removal fails due to a mismatch between the cached session and the actual linked account. You can try:

    • Re-adding the Google Drive account.
    • Then immediately removing it again.

    Note: If you have access to the external account, it's recommended to remove the integration from the provider's side as well.
    After that, please try log out and then log in to your outlook again and check if the issue still persists.


    If you still cannot resolve the issue perfectly, please kindly contact Micrsoft Technical Support team for deeper analysis. I'd love to assist further, but due to limited resources of a forum moderator, I cannot perform deeper troubleshoot steps.
    You will need to be a Microsoft 365 admin to raise the support ticket. If you’re not an admin, you can find guidance on locating them at How do I find my Microsoft 365 admin? - Microsoft Support.  

    The Microsoft 365 Admin should create a service request with Microsoft support to get advanced technical assistance and diagnostics. For detailed instructions on how to get support, please refer to Get support - Microsoft 365 admin. 

    If you do find a way to recover the file by submitting support ticket, please consider updating this thread. It would be greatly appreciated by myself and others who may encounter a similar issue. 

    Thank you for your kindness and understanding so far!


    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. User's image

    0 comments No comments

Your answer

Answers can be marked as Accepted Answers by the question author, which helps users to know the answer solved the author's problem.