How to find out who created a form

3 cheers to toszypul for such a great find!

steviebee here is a way to Inspect the Network trace. This works in Chrome and Edge (and probably any other Chromium based browser).

• Right-click the browser page (anywhere on the page is fine) and choose Inspect
• Go to the Network tab

  • Note: if the Inspect window is small enough, Network may be hidden in the >> menu

• Clear any data that has already been collected (Crossed out circle 'No' icon)
• Check the checkbox for Preserve Log
• Make sure the log is recording (red circle with a red square inside = it is recording)

• Browse to https://forms.office.com/Pages/DesignPage.aspx?origin=shell#FormId=<FormID> again

• Click the down arrow icon to download the results as a .har file

  • You can give this .har file any name you want and save it anywhere you want - the file won't be needed for very long

• Open the .har file with a text editor like Notepad or Notepad++
• Use Ctrl+F to search for https://forms.office.com/formapi/api/
• You will find a URL like this https://forms.office.com/formapi/api/a5cbe99f-1120-999c-a6e7-999e2c99e8c4/groups/a2579999-96b5-99b-bfc5-07d999670f99/light/forms... [a lot more URL here]
• If it says /groups/ between the 2 IDs it is a group that owns the form. If it says /users/ between the 2 IDs it is a user who owns the form.
• The ID after /groups/ or /users/ is the AAD ID (Azure AD ID)

To convert the AAD ID to an actual name/group, toszypul recommended Microsoft Graph, but I was able to just open up Azure AD, select groups, and search by that AAD ID. I haven't tested to see if that also works with users, but I'd assume so.