I am trying to add an Edit Form to my app.
I have made a Flow to grab the record that needs updating.
I am grabbing it in the OnVisible Action of the Screen:
ClearCollect(updateCollection, UpdateGoodsIn.Run(SelectedItem.thOurRef, SelectedItem.stCode))
Now I am trying to connect this as the Data source for an Edit Form.

I have looked at this reference document but it makes no mention of it.
https://docs.microsoft.com/en-us/powerapps/maker/canvas-apps/controls/control-form-detail
As shown in the diagram, I have set my Data source to 'updateCollection' but PowerApps is still telling me 'The form isn't connected to any data yet'