A Microsoft file hosting and synchronization service.
Dear a-Karanphol Wichitpapharak,
Good day to you and thanks for your post in Microsoft Q&A. I'm sorry for the inconvenience you've encountered. To better assist you, could you please provide more details such as:
- Would you mind sharing me a screenshot about your issue?
- Please confirm that all user use account created by organization to share and access file.
- Is there anyone else face the issue apart from user B?
- User B cannot access to all files shared from User A, so how about does it happen when User C or someone else share file to user B?
- And if User B share files/folders, does issue appear?
Regarding your description, I would like to give you some tips that you can consider:
- Verify again that the sharing was set up correctly
- I would like to attach the article about sharing in OneDrive for your reference Share OneDrive files and folders
- The sharer should open OneDrive in a web browser, right-click the file, and select Manage access. Check the Direct access section to confirm the recipient's email or name is listed with "Can view" or "Can edit" permissions.
- If not, the share might not have been applied properly. In the Links giving access section, review any shared links.
- Ensure the link is set to "People in [your organization]" or "Specific people" (and that the recipient is added). If it's set to "Anyone with the link," internal users might still face issues if org policies restrict it.
- Resolution: Remove any incorrect links or permissions, then reshare the file directly with the recipient's organizational email. Select Share > People you specify, and grant view/edit
- Test: Ask the recipient to try accessing again after 5-10 minutes (permissions can take time to propagate).
- Check for File-Specific Restrictions
- Ensure the file isn't in the sharer's Personal Vault (a locked folder in OneDrive) - items there can't be shared.
- Resolution: Move the file to a regular OneDrive folder, then reshare it.
- If the file is part of a large folder (over 50,000 items including subfolders), sharing might fail due to limits.
- Resolution: Share individual files instead, or move excess items to another folder.
- Check for unique permissions overload: If the file or its parent folder has more than 5,000 unique permissions (recommended limit), access can be denied.
- Resolution: Simplify permissions by inheriting from the parent or reducing custom access rules in Manage
- Review Organizational Settings and Limits
- Contact IT to verify the permission of user - Microsoft 365 Admin Center > SharePoint Admin Center > Policies > Sharing
- If permission is set, refer to remove user B out the organization then re-add
- If all tips above cannot help you, please ask IT to create a support ticket - it is a live support that have experience engineer to support you directly.
Once again, I sincerely apologize for the unpleasant experience. I look forward to your information and if you have any questions, please feel free to reach out to me - I’ll be happy to assist you. Wishing you a wonderful day.
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