Using a sitecolumn with lookup type that references a parent list.
As a team member of the State of Kansas sharepoint team, we are suffering for more functionality with powerapps. We have a list of State Agencies that lives in a Site Collection as a List. In a subsite we create a site column [lookup] that references that list. In sharepoint we are able to use that site column and add it to list in the subsite and it all works seamlessly. When taking our list and trying to use PowerApps to create a form or a distributable app for agencies to use, the app will does not support this functionality. The error that powerapps provides is that "The lookup list is in another web...". As of this morning, the column is no longer available at all in power apps. At least we could submit a partial part of the list in question, unfortunately the informaiton in the site column is critical to useful forms.