Please Help Me, I can't upload file to Microsoft team

Hi Nisarut Kunjinda,

Thank you for reaching out to Microsoft Q&A Forum.

You're experiencing a persistent issue with file uploads in Microsoft Teams across multiple platforms (iPad, desktop app, and browser). Since everything is updated and the problem occurs everywhere, this suggests it's not device-specific but likely related to permissions, storage, or backend sync issues.

You should try the following steps to verify the issue: 

1. Clear Teams Cache

• Please follow this guide to clear your Teams cache: Clear the Teams client cache - Microsoft Teams | Microsoft Learn

2. Check Permissions

• Go to the channel → Click Manage Team → Check if you have Member role and file permissions enabled.

3. Verify SharePoint/OneDrive Access

• Open the Files tab → Click Open in SharePoint → See if you can upload there.
• If not, it's a SharePoint permission or quota issue.

If the issue persists after you check the recommended place, you should request your IT admin to raise a support ticket to Microsoft Support Agent. This issue may present as a complex case that required back-end logs for further troubleshoot. Given the nature of the problem, the most effective next step is use your admin credentials to submit a support request through the Microsoft 365 Admin Center. This route ensures that a Microsoft support engineer can initiate a remote session to investigate backend configurations, run advanced diagnostic tools, and, if necessary, escalate the case to specialized teams with access to internal systems and logs. These backend resources are essential for resolving issues that go beyond what’s visible in the user interface.

As community moderators, we’re here to guide you, but due to privacy and security limitations, we don’t have access to the backend tools required for a full resolution. For this reason, contacting Microsoft Support via the Admin Center is the most secure and efficient way forward.

I sincerely recommend you create a support ticket from Microsoft 365 Admin Center > Support > Help & Support.  

Microsoft also provides customer service phone numbers based on your region. You can find the appropriate contact number here: Customer service phone numbers - Microsoft Support 

For your security, please do not reply to this thread with this case number information. The official support line is the only secure way to handle these details. 

I hope this information is helpful. Please follow these steps and let me know if it works for you. If not, we can work together to resolve this.    

Thank you for your patience and your understanding. If you have any questions or need further assistance, please feel free to share them in the comments on this post so I can continue to support you. 

I look forward to continuing the conversation. 

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