If you try to create a flow that uses a list that has a Lookup Field which was defined in a parent site, Flow returns an error:
An error is returned even if the field is not being used as part of the flow.
Error "The lookup list is in another web." issue is a common problem. We have solved it in our own application. We came across this problem when building WebParts using the SharePoint Framework and found a way to fix it. I assume the FLOW team could use the same approahc to quickly fix FLOW.
Any update on this?