Hi,
I am trying to build a flow where members of our organisation can self-update their details should they change. What I want is the following:
- They fill out a microsoft form with their details,
- The flow finds the record in our member list (sharepoint list) with the same email address as the form response
- The flow over-writes the previous data in that record with the form responses
I have not even been able to get past here:

I am the owner of the form and of the flow. I am the only owner of either the form or the flow.
Yet, the form does not appear in the drop-down list. The form I am trying to link is called "CDA Member Information Update Form"

I then try to link the form by manually providing the form ID. The first step appears to accept the form ID, but the second step then returns the following:

What the hell!?!? This shouldn't be this hard! I am not even up to the hard part of this flow!
When I try to save the flow I get this error message up the top :

I am the one and only owner of every object involved in this flow and of the flow it's self - what on earth could I not be authorized to access? Why is this action "forbidden"?
Please help
Cheers