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Power Platform Community / Forums / Power Automate / MS form - uploading do...
Power Automate
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MS form - uploading document from external responder

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I'm building a flow with MS Forms that requires an external respondent to upload a document, for onward multiple approvals during the flow. The 'upload file' function is not available for external respondents and i need to find a way around this. Does anyone have any ideas please?? Is it possible to embed a link into the MS Form for an applicant to upload a document to, linked to Sharepoint perhaps? Any advice would be appreciated, thanks!
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    Riyaz_riz11 Profile Picture
    4,191 Super User 2026 Season 1 on at
    Hi,
     

    Create a SharePoint document library dedicated to collecting files.

     Generate an anonymous upload link (specific folder).

     Embed that link into your MS Form.

     Collect in the Form:

    • Respondent name or email

    • The filename they uploaded (or a unique reference)


    • Build a Power Automate Flow:


    • Trigger: MS Form submission

    • Look up the file in SharePoint

    • Attach the file and start approvals

     

     

    Create an Anonymous Upload Link

    1. Navigate into the folder you want to use.

    2. Click Share.

    3. Click “People in [your org] with the link can edit”.

    4. Change to:

       “Anyone with the link”

    5. Enable:

       “Allow editing”

    6. Optional: Set expiration date for security.

    Important: This link allows anonymous upload—don’t share it widely.

    Example:

    https://yourtenant.sharepoint.com/:f:/r/sites/YourSite/Shared Documents/ExternalUploads?e=abc123

     3. Embed the Upload Link into the MS Form

    In your Form description or as a question, add instructions:

    Step 1: Upload your file here.

    Step 2: Enter the filename you uploaded in the field below.

    Add a required question:

     

    Please enter the filename you just uploaded:

    (Single line text)

     
     

    If I have answered your question, please mark it as the preferred solution ✅ . If you like my response, please give it a Thumbs Up 👍.
    Regards,
    Riyaz

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