How to Allow External Users to Upload Files in Microsoft Forms
Question details
The user wants to enable external participants to upload documents when responding to a Microsoft Forms survey and is looking for a supported workaround.
- Product
- Microsoft Forms
- Device & OS
- not provided
- Scenario
- Creating a survey or questionnaire designed for external users where document submission is required.
- Observed behavior
- The native file upload question type is greyed out or completely unavailable when the form settings are configured to allow anyone to respond.
Verify that your form settings are currently set to 'Anyone can respond' and decide which cloud storage platforms you will accept for shared links.
Use a Text Question for Cloud Storage Links
Since native file uploads are disabled for external users, you can ask respondents to paste a secure sharing link from their personal cloud storage instead.
Microsoft Forms restricts the native File Upload feature to people within your organization to prevent malicious file uploads from anonymous sources. However, you can easily bypass this limitation by asking external respondents to provide a link to their files hosted on platforms like OneDrive, Google Drive, or Dropbox.
Open your Microsoft Form, click 'Add new', and select the 'Text' question type.
Name the question something clear, such as 'Please paste the sharing link to your uploaded document here'.
In the question subtitle or description, instruct users to set their file link permissions to 'Anyone with the link can view' so you do not run into access issues when reviewing responses.
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Frequently Asked Questions
Why is the file upload option greyed out in Microsoft Forms?
The file upload option is automatically disabled if your form settings are configured to 'Anyone can respond'. It is natively supported only when the form is strictly limited to 'Only people in my organization can respond'.
Can I use Power Automate to allow external users to upload files in Forms?
While Power Automate can automate file handling and organize uploaded documents, it cannot bypass the native restriction on the Microsoft Forms file upload button for anonymous external users.
Are there other Microsoft features for requesting files externally?
Yes, you can use the 'Request Files' feature directly within Microsoft OneDrive or SharePoint. This generates a secure link where external users can upload files directly to a specific folder without needing a Microsoft account.
