You are almost there, let's revisit the steps and extrapolate what got missed out:
1. Trigger: "When a new response is submitted" for Microsoft Form - you did it right.
2. Action: "Get response details" - you did it right for retrieving form data, of course including attachments.
3. Parse Attachments: The attachment question returns an array of file info (name, link) I guess. Use an "Apply to each" loop to process each attachment individually-this is what you missed out.
4. Copy Attachments to a SharePoint or OneDrive folder - this is important because to create link of a file it must exist first somewhere.
This is two steps task:
a. Please use either action "Get file content using path" or "Get file content" - you will be able to fetch the attachment content.
b. Please use "Create file" action in a SharePoint document library or in OneDrive folder to store the attachment. Doing this you are making sure there is a stable, unique URL for each file.
5. I am sure you are still inside the "Apply to each" loop - and here, at this point, append each file's url to a variable (string of course) or even array variable - doing so you are separating links by commas or line breaks (whatever you want).
6. We have exited the loop and we having a comma/line break separated url - now we can update the excel file. At this point let's update the Excel row corresponding to the form submission with the concatenated attachment links string. You can assist an Excel row to be unique (can use response Id or timestamp) to mark and find the correct excel row.
7. Now you sen the email, "Send an email notification V3"
Note: We need to avoid overwriting links - to dos so, we need to make each submission creates a brand new row in excel plus we can store all attachments links for that particular submission in once cell, separated clearly(by comma/line break), and finally for any new submissions let's not update existing rows.
Please let me know if this helps.
Thanks.
