Hi,
I'm currently trying to complete the flow below to send an email attachment of an auto-populated Word doc using MS Forms.

Unfortunately, when trying to open the file attachment, the two pop-ups below appear and the file can't be opened. As the second image states, the issue may pertain to permissions associated with the SharePoint site. But I want to avoid having to add users to the SharePoint site. I already tried the following guide, https://learn.microsoft.com/en-us/microsoft-365/community/power-automate-send-sharepoint-files-as-attachments. I tried adding the "For a selected file" trigger after the "Create file" step in my flow above but received the following message, "You cannot use this trigger as an action." (@JimmyHang, @Sympmarc, @daisyfell, @JoanneHendrickson)


Is there any step(s) and/or triggers I can add to my flow above that will allow a user access to the Word file attachment without adding them to the SharePoint site?
Appreciate the assistance!