Allow External Collaborators to Search Shared Content for Metadata
If an enterprise shares a folder to outside collaborators, and the content of this folder includes thousands of documents with assigned metadata templates, the external collaborator does not have the ability to filter search that shared content based on the metadata applied.
John Nickell commented
If the same external user is given a URL that has the metadata template already specified they can then search on that one metadata template. Is this a workaround or a loophole?